Home / 157,545.35-217,431.27-89,572.58

Finding the Fourth Proportional to 157,545.35, 217,431.27 and 89,572.58

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Solution

The fourth proportional to 157,545.35, 217,431.27 and 89,572.58 is: 123,620.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,545.35 : 217,431.27 = 89,572.58 : x
  2. Step 2: Convert to fraction form
    157,545.35/217,431.27 = 89,572.58/x
  3. Step 3: Cross multiply
    157,545.35x = 217,431.27 × 89,572.58
  4. Step 4: Simplify right side
    157,545.35x = 19,475,878,739.42
  5. Step 5: Solve for x
    x = 19,475,878,739.42/157,545.35
  6. Step 6: Final answer
    x = 123,620.78

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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.