Home / 156,634.50-216,104.14-88,644.72

Finding the Fourth Proportional to 156,634.50, 216,104.14 and 88,644.72

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Solution

The fourth proportional to 156,634.50, 216,104.14 and 88,644.72 is: 122,300.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634.50 : 216,104.14 = 88,644.72 : x
  2. Step 2: Convert to fraction form
    156,634.50/216,104.14 = 88,644.72/x
  3. Step 3: Cross multiply
    156,634.50x = 216,104.14 × 88,644.72
  4. Step 4: Simplify right side
    156,634.50x = 19,156,490,981.14
  5. Step 5: Solve for x
    x = 19,156,490,981.14/156,634.50
  6. Step 6: Final answer
    x = 122,300.58

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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.