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Finding the Fourth Proportional to 112,655.97, 168,923.34 and 45,154.13

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Solution

The fourth proportional to 112,655.97, 168,923.34 and 45,154.13 is: 67,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,655.97 : 168,923.34 = 45,154.13 : x
  2. Step 2: Convert to fraction form
    112,655.97/168,923.34 = 45,154.13/x
  3. Step 3: Cross multiply
    112,655.97x = 168,923.34 × 45,154.13
  4. Step 4: Simplify right side
    112,655.97x = 7,627,586,454.39
  5. Step 5: Solve for x
    x = 7,627,586,454.39/112,655.97
  6. Step 6: Final answer
    x = 67,706.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.