Home / 102,089.15-140,883.92-56,149.70

Finding the Fourth Proportional to 102,089.15, 140,883.92 and 56,149.70

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Solution

The fourth proportional to 102,089.15, 140,883.92 and 56,149.70 is: 77,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,089.15 : 140,883.92 = 56,149.70 : x
  2. Step 2: Convert to fraction form
    102,089.15/140,883.92 = 56,149.70/x
  3. Step 3: Cross multiply
    102,089.15x = 140,883.92 × 56,149.70
  4. Step 4: Simplify right side
    102,089.15x = 7,910,589,278.78
  5. Step 5: Solve for x
    x = 7,910,589,278.78/102,089.15
  6. Step 6: Final answer
    x = 77,487.08

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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.