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Finding the Fourth Proportional to 125,189.16, 172,760.94 and 68,600.40

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Solution

The fourth proportional to 125,189.16, 172,760.94 and 68,600.40 is: 94,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,189.16 : 172,760.94 = 68,600.40 : x
  2. Step 2: Convert to fraction form
    125,189.16/172,760.94 = 68,600.40/x
  3. Step 3: Cross multiply
    125,189.16x = 172,760.94 × 68,600.40
  4. Step 4: Simplify right side
    125,189.16x = 11,851,469,588.38
  5. Step 5: Solve for x
    x = 11,851,469,588.38/125,189.16
  6. Step 6: Final answer
    x = 94,668.50

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1.5x scale

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.