Home / 107,343.48-161,071.92-78,003.84

Finding the Fourth Proportional to 107,343.48, 161,071.92 and 78,003.84

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Solution

The fourth proportional to 107,343.48, 161,071.92 and 78,003.84 is: 117,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,343.48 : 161,071.92 = 78,003.84 : x
  2. Step 2: Convert to fraction form
    107,343.48/161,071.92 = 78,003.84/x
  3. Step 3: Cross multiply
    107,343.48x = 161,071.92 × 78,003.84
  4. Step 4: Simplify right side
    107,343.48x = 12,564,228,276.17
  5. Step 5: Solve for x
    x = 12,564,228,276.17/107,343.48
  6. Step 6: Final answer
    x = 117,046.96

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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.