Home / 103,853.60-155,452.35-81,546.20

Finding the Fourth Proportional to 103,853.60, 155,452.35 and 81,546.20

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Solution

The fourth proportional to 103,853.60, 155,452.35 and 81,546.20 is: 122,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,853.60 : 155,452.35 = 81,546.20 : x
  2. Step 2: Convert to fraction form
    103,853.60/155,452.35 = 81,546.20/x
  3. Step 3: Cross multiply
    103,853.60x = 155,452.35 × 81,546.20
  4. Step 4: Simplify right side
    103,853.60x = 12,676,548,423.57
  5. Step 5: Solve for x
    x = 12,676,548,423.57/103,853.60
  6. Step 6: Final answer
    x = 122,061.71

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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.