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Finding the Fourth Proportional to 125,739, 173,520.36 and 69,154.56

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Solution

The fourth proportional to 125,739, 173,520.36 and 69,154.56 is: 95,433.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,739 : 173,520.36 = 69,154.56 : x
  2. Step 2: Convert to fraction form
    125,739/173,520.36 = 69,154.56/x
  3. Step 3: Cross multiply
    125,739x = 173,520.36 × 69,154.56
  4. Step 4: Simplify right side
    125,739x = 11,999,724,146.84
  5. Step 5: Solve for x
    x = 11,999,724,146.84/125,739
  6. Step 6: Final answer
    x = 95,433.59

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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.