Home / 149,452.56-206,239.68-81,468.45

Finding the Fourth Proportional to 149,452.56, 206,239.68 and 81,468.45

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Solution

The fourth proportional to 149,452.56, 206,239.68 and 81,468.45 is: 112,423.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,452.56 : 206,239.68 = 81,468.45 : x
  2. Step 2: Convert to fraction form
    149,452.56/206,239.68 = 81,468.45/x
  3. Step 3: Cross multiply
    149,452.56x = 206,239.68 × 81,468.45
  4. Step 4: Simplify right side
    149,452.56x = 16,802,027,058.10
  5. Step 5: Solve for x
    x = 16,802,027,058.10/149,452.56
  6. Step 6: Final answer
    x = 112,423.82

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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.