Home / 128,850.56-193,294.08-40,113.04

Finding the Fourth Proportional to 128,850.56, 193,294.08 and 40,113.04

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Solution

The fourth proportional to 128,850.56, 193,294.08 and 40,113.04 is: 60,175.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,850.56 : 193,294.08 = 40,113.04 : x
  2. Step 2: Convert to fraction form
    128,850.56/193,294.08 = 40,113.04/x
  3. Step 3: Cross multiply
    128,850.56x = 193,294.08 × 40,113.04
  4. Step 4: Simplify right side
    128,850.56x = 7,753,613,162.80
  5. Step 5: Solve for x
    x = 7,753,613,162.80/128,850.56
  6. Step 6: Final answer
    x = 60,175.24

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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.