Home / 125,195.20-172,829.24-71,469.84

Finding the Fourth Proportional to 125,195.20, 172,829.24 and 71,469.84

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Solution

The fourth proportional to 125,195.20, 172,829.24 and 71,469.84 is: 98,662.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,195.20 : 172,829.24 = 71,469.84 : x
  2. Step 2: Convert to fraction form
    125,195.20/172,829.24 = 71,469.84/x
  3. Step 3: Cross multiply
    125,195.20x = 172,829.24 × 71,469.84
  4. Step 4: Simplify right side
    125,195.20x = 12,352,078,130.12
  5. Step 5: Solve for x
    x = 12,352,078,130.12/125,195.20
  6. Step 6: Final answer
    x = 98,662.55

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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.