Home / 156,794.20-216,465.76-103,234.90

Finding the Fourth Proportional to 156,794.20, 216,465.76 and 103,234.90

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Solution

The fourth proportional to 156,794.20, 216,465.76 and 103,234.90 is: 142,523.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,794.20 : 216,465.76 = 103,234.90 : x
  2. Step 2: Convert to fraction form
    156,794.20/216,465.76 = 103,234.90/x
  3. Step 3: Cross multiply
    156,794.20x = 216,465.76 × 103,234.90
  4. Step 4: Simplify right side
    156,794.20x = 22,346,821,087.02
  5. Step 5: Solve for x
    x = 22,346,821,087.02/156,794.20
  6. Step 6: Final answer
    x = 142,523.26

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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.