Home / 136,747.20-205,082.40-43,281.60

Finding the Fourth Proportional to 136,747.20, 205,082.40 and 43,281.60

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Solution

The fourth proportional to 136,747.20, 205,082.40 and 43,281.60 is: 64,910.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,747.20 : 205,082.40 = 43,281.60 : x
  2. Step 2: Convert to fraction form
    136,747.20/205,082.40 = 43,281.60/x
  3. Step 3: Cross multiply
    136,747.20x = 205,082.40 × 43,281.60
  4. Step 4: Simplify right side
    136,747.20x = 8,876,294,403.84
  5. Step 5: Solve for x
    x = 8,876,294,403.84/136,747.20
  6. Step 6: Final answer
    x = 64,910.25

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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.