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Finding the Fourth Proportional to 124,190.64, 171,378.72 and 67,600.80

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Solution

The fourth proportional to 124,190.64, 171,378.72 and 67,600.80 is: 93,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,190.64 : 171,378.72 = 67,600.80 : x
  2. Step 2: Convert to fraction form
    124,190.64/171,378.72 = 67,600.80/x
  3. Step 3: Cross multiply
    124,190.64x = 171,378.72 × 67,600.80
  4. Step 4: Simplify right side
    124,190.64x = 11,585,338,574.98
  5. Step 5: Solve for x
    x = 11,585,338,574.98/124,190.64
  6. Step 6: Final answer
    x = 93,286.73

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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.