Home / 154,043.52-212,580.70-84,194.23

Finding the Fourth Proportional to 154,043.52, 212,580.70 and 84,194.23

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Solution

The fourth proportional to 154,043.52, 212,580.70 and 84,194.23 is: 116,188.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,043.52 : 212,580.70 = 84,194.23 : x
  2. Step 2: Convert to fraction form
    154,043.52/212,580.70 = 84,194.23/x
  3. Step 3: Cross multiply
    154,043.52x = 212,580.70 × 84,194.23
  4. Step 4: Simplify right side
    154,043.52x = 17,898,068,349.36
  5. Step 5: Solve for x
    x = 17,898,068,349.36/154,043.52
  6. Step 6: Final answer
    x = 116,188.39

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Double scale
Find fourth proportional to 154,044.52, 212,582.08 and 84,195.23
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.