Home / 108,470.09-162,422.17-87,294.47

Finding the Fourth Proportional to 108,470.09, 162,422.17 and 87,294.47

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Solution

The fourth proportional to 108,470.09, 162,422.17 and 87,294.47 is: 130,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,470.09 : 162,422.17 = 87,294.47 : x
  2. Step 2: Convert to fraction form
    108,470.09/162,422.17 = 87,294.47/x
  3. Step 3: Cross multiply
    108,470.09x = 162,422.17 × 87,294.47
  4. Step 4: Simplify right side
    108,470.09x = 14,178,556,216.05
  5. Step 5: Solve for x
    x = 14,178,556,216.05/108,470.09
  6. Step 6: Final answer
    x = 130,713.97

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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.