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Finding the Fourth Proportional to 150,551.29, 207,701.50 and 86,876.79

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Solution

The fourth proportional to 150,551.29, 207,701.50 and 86,876.79 is: 119,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,551.29 : 207,701.50 = 86,876.79 : x
  2. Step 2: Convert to fraction form
    150,551.29/207,701.50 = 86,876.79/x
  3. Step 3: Cross multiply
    150,551.29x = 207,701.50 × 86,876.79
  4. Step 4: Simplify right side
    150,551.29x = 18,044,439,598.19
  5. Step 5: Solve for x
    x = 18,044,439,598.19/150,551.29
  6. Step 6: Final answer
    x = 119,855.76

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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.