Home / 115,439.20-173,158.80-106,885.60

Finding the Fourth Proportional to 115,439.20, 173,158.80 and 106,885.60

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Solution

The fourth proportional to 115,439.20, 173,158.80 and 106,885.60 is: 160,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,439.20 : 173,158.80 = 106,885.60 : x
  2. Step 2: Convert to fraction form
    115,439.20/173,158.80 = 106,885.60/x
  3. Step 3: Cross multiply
    115,439.20x = 173,158.80 × 106,885.60
  4. Step 4: Simplify right side
    115,439.20x = 18,508,182,233.28
  5. Step 5: Solve for x
    x = 18,508,182,233.28/115,439.20
  6. Step 6: Final answer
    x = 160,328.40

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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.