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Finding the Fourth Proportional to 103,057.68, 142,079.96 and 88,110.88

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Solution

The fourth proportional to 103,057.68, 142,079.96 and 88,110.88 is: 121,473.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,057.68 : 142,079.96 = 88,110.88 : x
  2. Step 2: Convert to fraction form
    103,057.68/142,079.96 = 88,110.88/x
  3. Step 3: Cross multiply
    103,057.68x = 142,079.96 × 88,110.88
  4. Step 4: Simplify right side
    103,057.68x = 12,518,790,305.96
  5. Step 5: Solve for x
    x = 12,518,790,305.96/103,057.68
  6. Step 6: Final answer
    x = 121,473.63

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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.