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Finding the Fourth Proportional to 150,529.88, 207,729.52 and 86,866.31

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Solution

The fourth proportional to 150,529.88, 207,729.52 and 86,866.31 is: 119,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,529.88 : 207,729.52 = 86,866.31 : x
  2. Step 2: Convert to fraction form
    150,529.88/207,729.52 = 86,866.31/x
  3. Step 3: Cross multiply
    150,529.88x = 207,729.52 × 86,866.31
  4. Step 4: Simplify right side
    150,529.88x = 18,044,696,880.47
  5. Step 5: Solve for x
    x = 18,044,696,880.47/150,529.88
  6. Step 6: Final answer
    x = 119,874.52

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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.