Home / 121,026.96-181,545.30-42,149.16

Finding the Fourth Proportional to 121,026.96, 181,545.30 and 42,149.16

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Solution

The fourth proportional to 121,026.96, 181,545.30 and 42,149.16 is: 63,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,026.96 : 181,545.30 = 42,149.16 : x
  2. Step 2: Convert to fraction form
    121,026.96/181,545.30 = 42,149.16/x
  3. Step 3: Cross multiply
    121,026.96x = 181,545.30 × 42,149.16
  4. Step 4: Simplify right side
    121,026.96x = 7,651,981,896.95
  5. Step 5: Solve for x
    x = 7,651,981,896.95/121,026.96
  6. Step 6: Final answer
    x = 63,225.43

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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.