Home / 115,621.60-173,432.40-36,743.80

Finding the Fourth Proportional to 115,621.60, 173,432.40 and 36,743.80

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Solution

The fourth proportional to 115,621.60, 173,432.40 and 36,743.80 is: 55,115.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,621.60 : 173,432.40 = 36,743.80 : x
  2. Step 2: Convert to fraction form
    115,621.60/173,432.40 = 36,743.80/x
  3. Step 3: Cross multiply
    115,621.60x = 173,432.40 × 36,743.80
  4. Step 4: Simplify right side
    115,621.60x = 6,372,565,419.12
  5. Step 5: Solve for x
    x = 6,372,565,419.12/115,621.60
  6. Step 6: Final answer
    x = 55,115.70

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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.