Home / 156,962.20-235,572.90-72,851.80

Finding the Fourth Proportional to 156,962.20, 235,572.90 and 72,851.80

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Solution

The fourth proportional to 156,962.20, 235,572.90 and 72,851.80 is: 109,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,962.20 : 235,572.90 = 72,851.80 : x
  2. Step 2: Convert to fraction form
    156,962.20/235,572.90 = 72,851.80/x
  3. Step 3: Cross multiply
    156,962.20x = 235,572.90 × 72,851.80
  4. Step 4: Simplify right side
    156,962.20x = 17,161,909,796.22
  5. Step 5: Solve for x
    x = 17,161,909,796.22/156,962.20
  6. Step 6: Final answer
    x = 109,337.85

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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.