Home / 155,867.60-215,096.96-84,247.44

Finding the Fourth Proportional to 155,867.60, 215,096.96 and 84,247.44

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Solution

The fourth proportional to 155,867.60, 215,096.96 and 84,247.44 is: 116,261.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,867.60 : 215,096.96 = 84,247.44 : x
  2. Step 2: Convert to fraction form
    155,867.60/215,096.96 = 84,247.44/x
  3. Step 3: Cross multiply
    155,867.60x = 215,096.96 × 84,247.44
  4. Step 4: Simplify right side
    155,867.60x = 18,121,368,231.78
  5. Step 5: Solve for x
    x = 18,121,368,231.78/155,867.60
  6. Step 6: Final answer
    x = 116,261.29

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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.