Home / 121,354.38-182,113.54-42,469.28

Finding the Fourth Proportional to 121,354.38, 182,113.54 and 42,469.28

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Solution

The fourth proportional to 121,354.38, 182,113.54 and 42,469.28 is: 63,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,354.38 : 182,113.54 = 42,469.28 : x
  2. Step 2: Convert to fraction form
    121,354.38/182,113.54 = 42,469.28/x
  3. Step 3: Cross multiply
    121,354.38x = 182,113.54 × 42,469.28
  4. Step 4: Simplify right side
    121,354.38x = 7,734,230,922.05
  5. Step 5: Solve for x
    x = 7,734,230,922.05/121,354.38
  6. Step 6: Final answer
    x = 63,732.61

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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.