Home / 156,961.90-235,442.85-103,817.80

Finding the Fourth Proportional to 156,961.90, 235,442.85 and 103,817.80

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Solution

The fourth proportional to 156,961.90, 235,442.85 and 103,817.80 is: 155,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,961.90 : 235,442.85 = 103,817.80 : x
  2. Step 2: Convert to fraction form
    156,961.90/235,442.85 = 103,817.80/x
  3. Step 3: Cross multiply
    156,961.90x = 235,442.85 × 103,817.80
  4. Step 4: Simplify right side
    156,961.90x = 24,443,158,712.73
  5. Step 5: Solve for x
    x = 24,443,158,712.73/156,961.90
  6. Step 6: Final answer
    x = 155,726.70

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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.