Home / 102,654.97-141,585.12-61,776.50

Finding the Fourth Proportional to 102,654.97, 141,585.12 and 61,776.50

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Solution

The fourth proportional to 102,654.97, 141,585.12 and 61,776.50 is: 85,204.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,654.97 : 141,585.12 = 61,776.50 : x
  2. Step 2: Convert to fraction form
    102,654.97/141,585.12 = 61,776.50/x
  3. Step 3: Cross multiply
    102,654.97x = 141,585.12 × 61,776.50
  4. Step 4: Simplify right side
    102,654.97x = 8,746,632,457.75
  5. Step 5: Solve for x
    x = 8,746,632,457.75/102,654.97
  6. Step 6: Final answer
    x = 85,204.18

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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.