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Finding the Fourth Proportional to 156,774.78, 216,354.69 and 88,793.70

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Solution

The fourth proportional to 156,774.78, 216,354.69 and 88,793.70 is: 122,538.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,774.78 : 216,354.69 = 88,793.70 : x
  2. Step 2: Convert to fraction form
    156,774.78/216,354.69 = 88,793.70/x
  3. Step 3: Cross multiply
    156,774.78x = 216,354.69 × 88,793.70
  4. Step 4: Simplify right side
    156,774.78x = 19,210,933,437.45
  5. Step 5: Solve for x
    x = 19,210,933,437.45/156,774.78
  6. Step 6: Final answer
    x = 122,538.42

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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.