Home / 108,719.31-162,945.09-51,823.14

Finding the Fourth Proportional to 108,719.31, 162,945.09 and 51,823.14

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Solution

The fourth proportional to 108,719.31, 162,945.09 and 51,823.14 is: 77,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,719.31 : 162,945.09 = 51,823.14 : x
  2. Step 2: Convert to fraction form
    108,719.31/162,945.09 = 51,823.14/x
  3. Step 3: Cross multiply
    108,719.31x = 162,945.09 × 51,823.14
  4. Step 4: Simplify right side
    108,719.31x = 8,444,326,211.38
  5. Step 5: Solve for x
    x = 8,444,326,211.38/108,719.31
  6. Step 6: Final answer
    x = 77,670.90

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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.