Home / 102,001.07-140,761.50-56,677.73

Finding the Fourth Proportional to 102,001.07, 140,761.50 and 56,677.73

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Solution

The fourth proportional to 102,001.07, 140,761.50 and 56,677.73 is: 78,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,001.07 : 140,761.50 = 56,677.73 : x
  2. Step 2: Convert to fraction form
    102,001.07/140,761.50 = 56,677.73/x
  3. Step 3: Cross multiply
    102,001.07x = 140,761.50 × 56,677.73
  4. Step 4: Simplify right side
    102,001.07x = 7,978,041,375.05
  5. Step 5: Solve for x
    x = 7,978,041,375.05/102,001.07
  6. Step 6: Final answer
    x = 78,215.27

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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.