Home / 156,080.88-215,391.36-88,112.16

Finding the Fourth Proportional to 156,080.88, 215,391.36 and 88,112.16

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Solution

The fourth proportional to 156,080.88, 215,391.36 and 88,112.16 is: 121,594.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,080.88 : 215,391.36 = 88,112.16 : x
  2. Step 2: Convert to fraction form
    156,080.88/215,391.36 = 88,112.16/x
  3. Step 3: Cross multiply
    156,080.88x = 215,391.36 × 88,112.16
  4. Step 4: Simplify right side
    156,080.88x = 18,978,597,974.94
  5. Step 5: Solve for x
    x = 18,978,597,974.94/156,080.88
  6. Step 6: Final answer
    x = 121,594.64

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1.5x scale

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.