Home / 156,663.24-216,198.64-88,680.30

Finding the Fourth Proportional to 156,663.24, 216,198.64 and 88,680.30

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Solution

The fourth proportional to 156,663.24, 216,198.64 and 88,680.30 is: 122,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,663.24 : 216,198.64 = 88,680.30 : x
  2. Step 2: Convert to fraction form
    156,663.24/216,198.64 = 88,680.30/x
  3. Step 3: Cross multiply
    156,663.24x = 216,198.64 × 88,680.30
  4. Step 4: Simplify right side
    156,663.24x = 19,172,560,254.79
  5. Step 5: Solve for x
    x = 19,172,560,254.79/156,663.24
  6. Step 6: Final answer
    x = 122,380.72

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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.