Home / 161,231.52-222,562.08-121,061.28

Finding the Fourth Proportional to 161,231.52, 222,562.08 and 121,061.28

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Solution

The fourth proportional to 161,231.52, 222,562.08 and 121,061.28 is: 167,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,231.52 : 222,562.08 = 121,061.28 : x
  2. Step 2: Convert to fraction form
    161,231.52/222,562.08 = 121,061.28/x
  3. Step 3: Cross multiply
    161,231.52x = 222,562.08 × 121,061.28
  4. Step 4: Simplify right side
    161,231.52x = 26,943,650,284.26
  5. Step 5: Solve for x
    x = 26,943,650,284.26/161,231.52
  6. Step 6: Final answer
    x = 167,111.56

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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.