Home / 115,373.28-159,217.20-67,661.04

Finding the Fourth Proportional to 115,373.28, 159,217.20 and 67,661.04

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Solution

The fourth proportional to 115,373.28, 159,217.20 and 67,661.04 is: 93,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,373.28 : 159,217.20 = 67,661.04 : x
  2. Step 2: Convert to fraction form
    115,373.28/159,217.20 = 67,661.04/x
  3. Step 3: Cross multiply
    115,373.28x = 159,217.20 × 67,661.04
  4. Step 4: Simplify right side
    115,373.28x = 10,772,801,337.89
  5. Step 5: Solve for x
    x = 10,772,801,337.89/115,373.28
  6. Step 6: Final answer
    x = 93,373.45

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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.