Home / 156,257.30-234,391.74-80,335.52

Finding the Fourth Proportional to 156,257.30, 234,391.74 and 80,335.52

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Solution

The fourth proportional to 156,257.30, 234,391.74 and 80,335.52 is: 120,506.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,257.30 : 234,391.74 = 80,335.52 : x
  2. Step 2: Convert to fraction form
    156,257.30/234,391.74 = 80,335.52/x
  3. Step 3: Cross multiply
    156,257.30x = 234,391.74 × 80,335.52
  4. Step 4: Simplify right side
    156,257.30x = 18,829,982,316.60
  5. Step 5: Solve for x
    x = 18,829,982,316.60/156,257.30
  6. Step 6: Final answer
    x = 120,506.26

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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.