Home / 90,195.72-135,340.26-65,440.10

Finding the Fourth Proportional to 90,195.72, 135,340.26 and 65,440.10

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Solution

The fourth proportional to 90,195.72, 135,340.26 and 65,440.10 is: 98,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,195.72 : 135,340.26 = 65,440.10 : x
  2. Step 2: Convert to fraction form
    90,195.72/135,340.26 = 65,440.10/x
  3. Step 3: Cross multiply
    90,195.72x = 135,340.26 × 65,440.10
  4. Step 4: Simplify right side
    90,195.72x = 8,856,679,471.72
  5. Step 5: Solve for x
    x = 8,856,679,471.72/90,195.72
  6. Step 6: Final answer
    x = 98,194.01

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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.