Home / 87,292.56-130,757.20-84,281.34

Finding the Fourth Proportional to 87,292.56, 130,757.20 and 84,281.34

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Solution

The fourth proportional to 87,292.56, 130,757.20 and 84,281.34 is: 126,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,292.56 : 130,757.20 = 84,281.34 : x
  2. Step 2: Convert to fraction form
    87,292.56/130,757.20 = 84,281.34/x
  3. Step 3: Cross multiply
    87,292.56x = 130,757.20 × 84,281.34
  4. Step 4: Simplify right side
    87,292.56x = 11,020,392,030.65
  5. Step 5: Solve for x
    x = 11,020,392,030.65/87,292.56
  6. Step 6: Final answer
    x = 126,246.64

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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.