Home / 154,152.24-212,725.60-86,169.36

Finding the Fourth Proportional to 154,152.24, 212,725.60 and 86,169.36

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Solution

The fourth proportional to 154,152.24, 212,725.60 and 86,169.36 is: 118,911.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,152.24 : 212,725.60 = 86,169.36 : x
  2. Step 2: Convert to fraction form
    154,152.24/212,725.60 = 86,169.36/x
  3. Step 3: Cross multiply
    154,152.24x = 212,725.60 × 86,169.36
  4. Step 4: Simplify right side
    154,152.24x = 18,330,428,807.62
  5. Step 5: Solve for x
    x = 18,330,428,807.62/154,152.24
  6. Step 6: Final answer
    x = 118,911.21

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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.