Home / 97,439.20-146,158.80-38,255.20

Finding the Fourth Proportional to 97,439.20, 146,158.80 and 38,255.20

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Solution

The fourth proportional to 97,439.20, 146,158.80 and 38,255.20 is: 57,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,439.20 : 146,158.80 = 38,255.20 : x
  2. Step 2: Convert to fraction form
    97,439.20/146,158.80 = 38,255.20/x
  3. Step 3: Cross multiply
    97,439.20x = 146,158.80 × 38,255.20
  4. Step 4: Simplify right side
    97,439.20x = 5,591,334,125.76
  5. Step 5: Solve for x
    x = 5,591,334,125.76/97,439.20
  6. Step 6: Final answer
    x = 57,382.80

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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.