Home / 102,318.72-141,200.10-59,306.51

Finding the Fourth Proportional to 102,318.72, 141,200.10 and 59,306.51

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Solution

The fourth proportional to 102,318.72, 141,200.10 and 59,306.51 is: 81,843.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,318.72 : 141,200.10 = 59,306.51 : x
  2. Step 2: Convert to fraction form
    102,318.72/141,200.10 = 59,306.51/x
  3. Step 3: Cross multiply
    102,318.72x = 141,200.10 × 59,306.51
  4. Step 4: Simplify right side
    102,318.72x = 8,374,084,436.65
  5. Step 5: Solve for x
    x = 8,374,084,436.65/102,318.72
  6. Step 6: Final answer
    x = 81,843.13

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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.