Home / 156,717.30-216,267.61-88,732.50

Finding the Fourth Proportional to 156,717.30, 216,267.61 and 88,732.50

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Solution

The fourth proportional to 156,717.30, 216,267.61 and 88,732.50 is: 122,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,717.30 : 216,267.61 = 88,732.50 : x
  2. Step 2: Convert to fraction form
    156,717.30/216,267.61 = 88,732.50/x
  3. Step 3: Cross multiply
    156,717.30x = 216,267.61 × 88,732.50
  4. Step 4: Simplify right side
    156,717.30x = 19,189,965,704.33
  5. Step 5: Solve for x
    x = 19,189,965,704.33/156,717.30
  6. Step 6: Final answer
    x = 122,449.57

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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.