Home / 156,930.90-235,396.35-137,247.90

Finding the Fourth Proportional to 156,930.90, 235,396.35 and 137,247.90

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Solution

The fourth proportional to 156,930.90, 235,396.35 and 137,247.90 is: 205,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.90 : 235,396.35 = 137,247.90 : x
  2. Step 2: Convert to fraction form
    156,930.90/235,396.35 = 137,247.90/x
  3. Step 3: Cross multiply
    156,930.90x = 235,396.35 × 137,247.90
  4. Step 4: Simplify right side
    156,930.90x = 32,307,654,705.17
  5. Step 5: Solve for x
    x = 32,307,654,705.17/156,930.90
  6. Step 6: Final answer
    x = 205,871.85

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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.