Home / 149,613.36-206,493.15-89,187.90

Finding the Fourth Proportional to 149,613.36, 206,493.15 and 89,187.90

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Solution

The fourth proportional to 149,613.36, 206,493.15 and 89,187.90 is: 123,095.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,613.36 : 206,493.15 = 89,187.90 : x
  2. Step 2: Convert to fraction form
    149,613.36/206,493.15 = 89,187.90/x
  3. Step 3: Cross multiply
    149,613.36x = 206,493.15 × 89,187.90
  4. Step 4: Simplify right side
    149,613.36x = 18,416,690,412.89
  5. Step 5: Solve for x
    x = 18,416,690,412.89/149,613.36
  6. Step 6: Final answer
    x = 123,095.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.