Home / 125,156.20-172,719.90-68,567.62

Finding the Fourth Proportional to 125,156.20, 172,719.90 and 68,567.62

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Solution

The fourth proportional to 125,156.20, 172,719.90 and 68,567.62 is: 94,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,156.20 : 172,719.90 = 68,567.62 : x
  2. Step 2: Convert to fraction form
    125,156.20/172,719.90 = 68,567.62/x
  3. Step 3: Cross multiply
    125,156.20x = 172,719.90 × 68,567.62
  4. Step 4: Simplify right side
    125,156.20x = 11,842,992,469.64
  5. Step 5: Solve for x
    x = 11,842,992,469.64/125,156.20
  6. Step 6: Final answer
    x = 94,625.70

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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.