Home / 156,796.20-216,468.52-103,236.90

Finding the Fourth Proportional to 156,796.20, 216,468.52 and 103,236.90

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Solution

The fourth proportional to 156,796.20, 216,468.52 and 103,236.90 is: 142,526.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,796.20 : 216,468.52 = 103,236.90 : x
  2. Step 2: Convert to fraction form
    156,796.20/216,468.52 = 103,236.90/x
  3. Step 3: Cross multiply
    156,796.20x = 216,468.52 × 103,236.90
  4. Step 4: Simplify right side
    156,796.20x = 22,347,538,952.39
  5. Step 5: Solve for x
    x = 22,347,538,952.39/156,796.20
  6. Step 6: Final answer
    x = 142,526.02

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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.