Home / 161,283.72-222,561.15-89,661.90

Finding the Fourth Proportional to 161,283.72, 222,561.15 and 89,661.90

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Solution

The fourth proportional to 161,283.72, 222,561.15 and 89,661.90 is: 123,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,283.72 : 222,561.15 = 89,661.90 : x
  2. Step 2: Convert to fraction form
    161,283.72/222,561.15 = 89,661.90/x
  3. Step 3: Cross multiply
    161,283.72x = 222,561.15 × 89,661.90
  4. Step 4: Simplify right side
    161,283.72x = 19,955,255,575.19
  5. Step 5: Solve for x
    x = 19,955,255,575.19/161,283.72
  6. Step 6: Final answer
    x = 123,727.65

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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.