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Finding the Fourth Proportional to 125,174.75, 172,741.25 and 68,586.12

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Solution

The fourth proportional to 125,174.75, 172,741.25 and 68,586.12 is: 94,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,174.75 : 172,741.25 = 68,586.12 : x
  2. Step 2: Convert to fraction form
    125,174.75/172,741.25 = 68,586.12/x
  3. Step 3: Cross multiply
    125,174.75x = 172,741.25 × 68,586.12
  4. Step 4: Simplify right side
    125,174.75x = 11,847,652,272.92
  5. Step 5: Solve for x
    x = 11,847,652,272.92/125,174.75
  6. Step 6: Final answer
    x = 94,648.90

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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.