Home / 108,531.98-162,853.52-51,670.20

Finding the Fourth Proportional to 108,531.98, 162,853.52 and 51,670.20

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Solution

The fourth proportional to 108,531.98, 162,853.52 and 51,670.20 is: 77,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,531.98 : 162,853.52 = 51,670.20 : x
  2. Step 2: Convert to fraction form
    108,531.98/162,853.52 = 51,670.20/x
  3. Step 3: Cross multiply
    108,531.98x = 162,853.52 × 51,670.20
  4. Step 4: Simplify right side
    108,531.98x = 8,414,674,078.28
  5. Step 5: Solve for x
    x = 8,414,674,078.28/108,531.98
  6. Step 6: Final answer
    x = 77,531.75

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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.