Home / 107,722.59-161,529.19-80,822.49

Finding the Fourth Proportional to 107,722.59, 161,529.19 and 80,822.49

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Solution

The fourth proportional to 107,722.59, 161,529.19 and 80,822.49 is: 121,192.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,722.59 : 161,529.19 = 80,822.49 : x
  2. Step 2: Convert to fraction form
    107,722.59/161,529.19 = 80,822.49/x
  3. Step 3: Cross multiply
    107,722.59x = 161,529.19 × 80,822.49
  4. Step 4: Simplify right side
    107,722.59x = 13,055,191,343.48
  5. Step 5: Solve for x
    x = 13,055,191,343.48/107,722.59
  6. Step 6: Final answer
    x = 121,192.70

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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.