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Finding the Fourth Proportional to 121,474.52, 167,740.32 and 76,230.92

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Solution

The fourth proportional to 121,474.52, 167,740.32 and 76,230.92 is: 105,264.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,474.52 : 167,740.32 = 76,230.92 : x
  2. Step 2: Convert to fraction form
    121,474.52/167,740.32 = 76,230.92/x
  3. Step 3: Cross multiply
    121,474.52x = 167,740.32 × 76,230.92
  4. Step 4: Simplify right side
    121,474.52x = 12,786,998,914.69
  5. Step 5: Solve for x
    x = 12,786,998,914.69/121,474.52
  6. Step 6: Final answer
    x = 105,264.86

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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.