Home / 156,145.44-215,427.38-101,672.66

Finding the Fourth Proportional to 156,145.44, 215,427.38 and 101,672.66

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Solution

The fourth proportional to 156,145.44, 215,427.38 and 101,672.66 is: 140,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,145.44 : 215,427.38 = 101,672.66 : x
  2. Step 2: Convert to fraction form
    156,145.44/215,427.38 = 101,672.66/x
  3. Step 3: Cross multiply
    156,145.44x = 215,427.38 × 101,672.66
  4. Step 4: Simplify right side
    156,145.44x = 21,903,074,761.43
  5. Step 5: Solve for x
    x = 21,903,074,761.43/156,145.44
  6. Step 6: Final answer
    x = 140,273.55

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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.