Home / 123,585.91-170,548.16-66,997.28

Finding the Fourth Proportional to 123,585.91, 170,548.16 and 66,997.28

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Solution

The fourth proportional to 123,585.91, 170,548.16 and 66,997.28 is: 92,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,585.91 : 170,548.16 = 66,997.28 : x
  2. Step 2: Convert to fraction form
    123,585.91/170,548.16 = 66,997.28/x
  3. Step 3: Cross multiply
    123,585.91x = 170,548.16 × 66,997.28
  4. Step 4: Simplify right side
    123,585.91x = 11,426,262,494.02
  5. Step 5: Solve for x
    x = 11,426,262,494.02/123,585.91
  6. Step 6: Final answer
    x = 92,456.03

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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.