Home / 123,252.49-170,087.88-66,663.73

Finding the Fourth Proportional to 123,252.49, 170,087.88 and 66,663.73

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Solution

The fourth proportional to 123,252.49, 170,087.88 and 66,663.73 is: 91,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,252.49 : 170,087.88 = 66,663.73 : x
  2. Step 2: Convert to fraction form
    123,252.49/170,087.88 = 66,663.73/x
  3. Step 3: Cross multiply
    123,252.49x = 170,087.88 × 66,663.73
  4. Step 4: Simplify right side
    123,252.49x = 11,338,692,508.59
  5. Step 5: Solve for x
    x = 11,338,692,508.59/123,252.49
  6. Step 6: Final answer
    x = 91,995.65

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1.5x scale

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.