Home / 102,891.28-141,909.90-68,888.96

Finding the Fourth Proportional to 102,891.28, 141,909.90 and 68,888.96

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Solution

The fourth proportional to 102,891.28, 141,909.90 and 68,888.96 is: 95,013.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,891.28 : 141,909.90 = 68,888.96 : x
  2. Step 2: Convert to fraction form
    102,891.28/141,909.90 = 68,888.96/x
  3. Step 3: Cross multiply
    102,891.28x = 141,909.90 × 68,888.96
  4. Step 4: Simplify right side
    102,891.28x = 9,776,025,424.70
  5. Step 5: Solve for x
    x = 9,776,025,424.70/102,891.28
  6. Step 6: Final answer
    x = 95,013.16

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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.