Home / 102,859.12-141,926.40-60,402.16

Finding the Fourth Proportional to 102,859.12, 141,926.40 and 60,402.16

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Solution

The fourth proportional to 102,859.12, 141,926.40 and 60,402.16 is: 83,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,859.12 : 141,926.40 = 60,402.16 : x
  2. Step 2: Convert to fraction form
    102,859.12/141,926.40 = 60,402.16/x
  3. Step 3: Cross multiply
    102,859.12x = 141,926.40 × 60,402.16
  4. Step 4: Simplify right side
    102,859.12x = 8,572,661,121.02
  5. Step 5: Solve for x
    x = 8,572,661,121.02/102,859.12
  6. Step 6: Final answer
    x = 83,343.71

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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.