Home / 151,545.20-209,022.45-103,060.95

Finding the Fourth Proportional to 151,545.20, 209,022.45 and 103,060.95

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Solution

The fourth proportional to 151,545.20, 209,022.45 and 103,060.95 is: 142,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,545.20 : 209,022.45 = 103,060.95 : x
  2. Step 2: Convert to fraction form
    151,545.20/209,022.45 = 103,060.95/x
  3. Step 3: Cross multiply
    151,545.20x = 209,022.45 × 103,060.95
  4. Step 4: Simplify right side
    151,545.20x = 21,542,052,416.66
  5. Step 5: Solve for x
    x = 21,542,052,416.66/151,545.20
  6. Step 6: Final answer
    x = 142,149.35

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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.