Home / 123,177.49-169,985.41-68,731.96

Finding the Fourth Proportional to 123,177.49, 169,985.41 and 68,731.96

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Solution

The fourth proportional to 123,177.49, 169,985.41 and 68,731.96 is: 94,850.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,177.49 : 169,985.41 = 68,731.96 : x
  2. Step 2: Convert to fraction form
    123,177.49/169,985.41 = 68,731.96/x
  3. Step 3: Cross multiply
    123,177.49x = 169,985.41 × 68,731.96
  4. Step 4: Simplify right side
    123,177.49x = 11,683,429,550.78
  5. Step 5: Solve for x
    x = 11,683,429,550.78/123,177.49
  6. Step 6: Final answer
    x = 94,850.36

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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.