Home / 156,651.40-234,977.10-38,321.20

Finding the Fourth Proportional to 156,651.40, 234,977.10 and 38,321.20

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Solution

The fourth proportional to 156,651.40, 234,977.10 and 38,321.20 is: 57,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,651.40 : 234,977.10 = 38,321.20 : x
  2. Step 2: Convert to fraction form
    156,651.40/234,977.10 = 38,321.20/x
  3. Step 3: Cross multiply
    156,651.40x = 234,977.10 × 38,321.20
  4. Step 4: Simplify right side
    156,651.40x = 9,004,604,444.52
  5. Step 5: Solve for x
    x = 9,004,604,444.52/156,651.40
  6. Step 6: Final answer
    x = 57,481.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.