Home / 221,150.57-331,747.38-87,999.71

Finding the Fourth Proportional to 221,150.57, 331,747.38 and 87,999.71

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Solution

The fourth proportional to 221,150.57, 331,747.38 and 87,999.71 is: 132,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,150.57 : 331,747.38 = 87,999.71 : x
  2. Step 2: Convert to fraction form
    221,150.57/331,747.38 = 87,999.71/x
  3. Step 3: Cross multiply
    221,150.57x = 331,747.38 × 87,999.71
  4. Step 4: Simplify right side
    221,150.57x = 29,193,671,574.52
  5. Step 5: Solve for x
    x = 29,193,671,574.52/221,150.57
  6. Step 6: Final answer
    x = 132,008.13

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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.