Home / 107,938.31-161,697.07-65,713.66

Finding the Fourth Proportional to 107,938.31, 161,697.07 and 65,713.66

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Solution

The fourth proportional to 107,938.31, 161,697.07 and 65,713.66 is: 98,442.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,938.31 : 161,697.07 = 65,713.66 : x
  2. Step 2: Convert to fraction form
    107,938.31/161,697.07 = 65,713.66/x
  3. Step 3: Cross multiply
    107,938.31x = 161,697.07 × 65,713.66
  4. Step 4: Simplify right side
    107,938.31x = 10,625,705,712.45
  5. Step 5: Solve for x
    x = 10,625,705,712.45/107,938.31
  6. Step 6: Final answer
    x = 98,442.39

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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.