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Finding the Fourth Proportional to 158,952.77, 219,354.64 and 87,332.61

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Solution

The fourth proportional to 158,952.77, 219,354.64 and 87,332.61 is: 120,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,952.77 : 219,354.64 = 87,332.61 : x
  2. Step 2: Convert to fraction form
    158,952.77/219,354.64 = 87,332.61/x
  3. Step 3: Cross multiply
    158,952.77x = 219,354.64 × 87,332.61
  4. Step 4: Simplify right side
    158,952.77x = 19,156,813,008.48
  5. Step 5: Solve for x
    x = 19,156,813,008.48/158,952.77
  6. Step 6: Final answer
    x = 120,518.90

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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.