Home / 156,100.48-215,418.58-88,118.04

Finding the Fourth Proportional to 156,100.48, 215,418.58 and 88,118.04

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Solution

The fourth proportional to 156,100.48, 215,418.58 and 88,118.04 is: 121,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,100.48 : 215,418.58 = 88,118.04 : x
  2. Step 2: Convert to fraction form
    156,100.48/215,418.58 = 88,118.04/x
  3. Step 3: Cross multiply
    156,100.48x = 215,418.58 × 88,118.04
  4. Step 4: Simplify right side
    156,100.48x = 18,982,263,517.36
  5. Step 5: Solve for x
    x = 18,982,263,517.36/156,100.48
  6. Step 6: Final answer
    x = 121,602.85

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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.