Home / 155,534.38-214,559.08-90,961.38

Finding the Fourth Proportional to 155,534.38, 214,559.08 and 90,961.38

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Solution

The fourth proportional to 155,534.38, 214,559.08 and 90,961.38 is: 125,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,534.38 : 214,559.08 = 90,961.38 : x
  2. Step 2: Convert to fraction form
    155,534.38/214,559.08 = 90,961.38/x
  3. Step 3: Cross multiply
    155,534.38x = 214,559.08 × 90,961.38
  4. Step 4: Simplify right side
    155,534.38x = 19,516,589,780.93
  5. Step 5: Solve for x
    x = 19,516,589,780.93/155,534.38
  6. Step 6: Final answer
    x = 125,480.87

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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.