Home / 107,707.67-161,320.92-78,057.41

Finding the Fourth Proportional to 107,707.67, 161,320.92 and 78,057.41

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Solution

The fourth proportional to 107,707.67, 161,320.92 and 78,057.41 is: 116,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,707.67 : 161,320.92 = 78,057.41 : x
  2. Step 2: Convert to fraction form
    107,707.67/161,320.92 = 78,057.41/x
  3. Step 3: Cross multiply
    107,707.67x = 161,320.92 × 78,057.41
  4. Step 4: Simplify right side
    107,707.67x = 12,592,293,194.02
  5. Step 5: Solve for x
    x = 12,592,293,194.02/107,707.67
  6. Step 6: Final answer
    x = 116,911.76

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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.