Home / 90,281.18-135,229.73-73,334.59

Finding the Fourth Proportional to 90,281.18, 135,229.73 and 73,334.59

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Solution

The fourth proportional to 90,281.18, 135,229.73 and 73,334.59 is: 109,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,281.18 : 135,229.73 = 73,334.59 : x
  2. Step 2: Convert to fraction form
    90,281.18/135,229.73 = 73,334.59/x
  3. Step 3: Cross multiply
    90,281.18x = 135,229.73 × 73,334.59
  4. Step 4: Simplify right side
    90,281.18x = 9,917,016,687.20
  5. Step 5: Solve for x
    x = 9,917,016,687.20/90,281.18
  6. Step 6: Final answer
    x = 109,845.89

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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.