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Finding the Fourth Proportional to 100,545.74, 150,818.47 and 25,665.91

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Solution

The fourth proportional to 100,545.74, 150,818.47 and 25,665.91 is: 38,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,545.74 : 150,818.47 = 25,665.91 : x
  2. Step 2: Convert to fraction form
    100,545.74/150,818.47 = 25,665.91/x
  3. Step 3: Cross multiply
    100,545.74x = 150,818.47 × 25,665.91
  4. Step 4: Simplify right side
    100,545.74x = 3,870,893,277.36
  5. Step 5: Solve for x
    x = 3,870,893,277.36/100,545.74
  6. Step 6: Final answer
    x = 38,498.83

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1.5x scale

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.