Home / 123,761.91-185,407.20-70,490.66

Finding the Fourth Proportional to 123,761.91, 185,407.20 and 70,490.66

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Solution

The fourth proportional to 123,761.91, 185,407.20 and 70,490.66 is: 105,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761.91 : 185,407.20 = 70,490.66 : x
  2. Step 2: Convert to fraction form
    123,761.91/185,407.20 = 70,490.66/x
  3. Step 3: Cross multiply
    123,761.91x = 185,407.20 × 70,490.66
  4. Step 4: Simplify right side
    123,761.91x = 13,069,475,428.70
  5. Step 5: Solve for x
    x = 13,069,475,428.70/123,761.91
  6. Step 6: Final answer
    x = 105,601.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.