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Finding the Fourth Proportional to 150,529.54, 207,729.05 and 86,865.97

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Solution

The fourth proportional to 150,529.54, 207,729.05 and 86,865.97 is: 119,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,529.54 : 207,729.05 = 86,865.97 : x
  2. Step 2: Convert to fraction form
    150,529.54/207,729.05 = 86,865.97/x
  3. Step 3: Cross multiply
    150,529.54x = 207,729.05 × 86,865.97
  4. Step 4: Simplify right side
    150,529.54x = 18,044,584,688.94
  5. Step 5: Solve for x
    x = 18,044,584,688.94/150,529.54
  6. Step 6: Final answer
    x = 119,874.05

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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.