Home / 154,260.48-212,877.12-86,279.04

Finding the Fourth Proportional to 154,260.48, 212,877.12 and 86,279.04

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Solution

The fourth proportional to 154,260.48, 212,877.12 and 86,279.04 is: 119,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,260.48 : 212,877.12 = 86,279.04 : x
  2. Step 2: Convert to fraction form
    154,260.48/212,877.12 = 86,279.04/x
  3. Step 3: Cross multiply
    154,260.48x = 212,877.12 × 86,279.04
  4. Step 4: Simplify right side
    154,260.48x = 18,366,833,551.56
  5. Step 5: Solve for x
    x = 18,366,833,551.56/154,260.48
  6. Step 6: Final answer
    x = 119,063.77

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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.