Home / 90,082.31-135,238.28-73,474.74

Finding the Fourth Proportional to 90,082.31, 135,238.28 and 73,474.74

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Solution

The fourth proportional to 90,082.31, 135,238.28 and 73,474.74 is: 110,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,082.31 : 135,238.28 = 73,474.74 : x
  2. Step 2: Convert to fraction form
    90,082.31/135,238.28 = 73,474.74/x
  3. Step 3: Cross multiply
    90,082.31x = 135,238.28 × 73,474.74
  4. Step 4: Simplify right side
    90,082.31x = 9,936,597,093.67
  5. Step 5: Solve for x
    x = 9,936,597,093.67/90,082.31
  6. Step 6: Final answer
    x = 110,305.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.