Home / 123,864.92-171,004.40-81,546.46

Finding the Fourth Proportional to 123,864.92, 171,004.40 and 81,546.46

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Solution

The fourth proportional to 123,864.92, 171,004.40 and 81,546.46 is: 112,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,864.92 : 171,004.40 = 81,546.46 : x
  2. Step 2: Convert to fraction form
    123,864.92/171,004.40 = 81,546.46/x
  3. Step 3: Cross multiply
    123,864.92x = 171,004.40 × 81,546.46
  4. Step 4: Simplify right side
    123,864.92x = 13,944,803,464.42
  5. Step 5: Solve for x
    x = 13,944,803,464.42/123,864.92
  6. Step 6: Final answer
    x = 112,580.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.