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Finding the Fourth Proportional to 150,854.47, 208,156.05 and 87,179.98

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Solution

The fourth proportional to 150,854.47, 208,156.05 and 87,179.98 is: 120,295.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,854.47 : 208,156.05 = 87,179.98 : x
  2. Step 2: Convert to fraction form
    150,854.47/208,156.05 = 87,179.98/x
  3. Step 3: Cross multiply
    150,854.47x = 208,156.05 × 87,179.98
  4. Step 4: Simplify right side
    150,854.47x = 18,147,040,275.88
  5. Step 5: Solve for x
    x = 18,147,040,275.88/150,854.47
  6. Step 6: Final answer
    x = 120,295.01

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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.