Home / 120,145.90-180,229.62-34,755.42

Finding the Fourth Proportional to 120,145.90, 180,229.62 and 34,755.42

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Solution

The fourth proportional to 120,145.90, 180,229.62 and 34,755.42 is: 52,136.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,145.90 : 180,229.62 = 34,755.42 : x
  2. Step 2: Convert to fraction form
    120,145.90/180,229.62 = 34,755.42/x
  3. Step 3: Cross multiply
    120,145.90x = 180,229.62 × 34,755.42
  4. Step 4: Simplify right side
    120,145.90x = 6,263,955,892.53
  5. Step 5: Solve for x
    x = 6,263,955,892.53/120,145.90
  6. Step 6: Final answer
    x = 52,136.24

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1.5x scale

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.