Home / 160,971.28-222,129.25-89,345.66

Finding the Fourth Proportional to 160,971.28, 222,129.25 and 89,345.66

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Solution

The fourth proportional to 160,971.28, 222,129.25 and 89,345.66 is: 123,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,971.28 : 222,129.25 = 89,345.66 : x
  2. Step 2: Convert to fraction form
    160,971.28/222,129.25 = 89,345.66/x
  3. Step 3: Cross multiply
    160,971.28x = 222,129.25 × 89,345.66
  4. Step 4: Simplify right side
    160,971.28x = 19,846,285,268.59
  5. Step 5: Solve for x
    x = 19,846,285,268.59/160,971.28
  6. Step 6: Final answer
    x = 123,290.85

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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.