Home / 123,862.91-171,001.64-81,544.46

Finding the Fourth Proportional to 123,862.91, 171,001.64 and 81,544.46

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Solution

The fourth proportional to 123,862.91, 171,001.64 and 81,544.46 is: 112,577.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,862.91 : 171,001.64 = 81,544.46 : x
  2. Step 2: Convert to fraction form
    123,862.91/171,001.64 = 81,544.46/x
  3. Step 3: Cross multiply
    123,862.91x = 171,001.64 × 81,544.46
  4. Step 4: Simplify right side
    123,862.91x = 13,944,236,392.91
  5. Step 5: Solve for x
    x = 13,944,236,392.91/123,862.91
  6. Step 6: Final answer
    x = 112,577.98

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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.