Home / 156,790.20-216,460.24-103,230.90

Finding the Fourth Proportional to 156,790.20, 216,460.24 and 103,230.90

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Solution

The fourth proportional to 156,790.20, 216,460.24 and 103,230.90 is: 142,517.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,790.20 : 216,460.24 = 103,230.90 : x
  2. Step 2: Convert to fraction form
    156,790.20/216,460.24 = 103,230.90/x
  3. Step 3: Cross multiply
    156,790.20x = 216,460.24 × 103,230.90
  4. Step 4: Simplify right side
    156,790.20x = 22,345,385,389.42
  5. Step 5: Solve for x
    x = 22,345,385,389.42/156,790.20
  6. Step 6: Final answer
    x = 142,517.74

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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.