Home / 90,282.18-135,231.23-73,335.59

Finding the Fourth Proportional to 90,282.18, 135,231.23 and 73,335.59

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Solution

The fourth proportional to 90,282.18, 135,231.23 and 73,335.59 is: 109,847.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,282.18 : 135,231.23 = 73,335.59 : x
  2. Step 2: Convert to fraction form
    90,282.18/135,231.23 = 73,335.59/x
  3. Step 3: Cross multiply
    90,282.18x = 135,231.23 × 73,335.59
  4. Step 4: Simplify right side
    90,282.18x = 9,917,262,038.48
  5. Step 5: Solve for x
    x = 9,917,262,038.48/90,282.18
  6. Step 6: Final answer
    x = 109,847.39

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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.