Home / 161,656.29-223,112.07-123,343.29

Finding the Fourth Proportional to 161,656.29, 223,112.07 and 123,343.29

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Solution

The fourth proportional to 161,656.29, 223,112.07 and 123,343.29 is: 170,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,656.29 : 223,112.07 = 123,343.29 : x
  2. Step 2: Convert to fraction form
    161,656.29/223,112.07 = 123,343.29/x
  3. Step 3: Cross multiply
    161,656.29x = 223,112.07 × 123,343.29
  4. Step 4: Simplify right side
    161,656.29x = 27,519,376,752.51
  5. Step 5: Solve for x
    x = 27,519,376,752.51/161,656.29
  6. Step 6: Final answer
    x = 170,233.88

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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.