Home / 161,279.13-222,572.79-89,660.35

Finding the Fourth Proportional to 161,279.13, 222,572.79 and 89,660.35

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Solution

The fourth proportional to 161,279.13, 222,572.79 and 89,660.35 is: 123,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,279.13 : 222,572.79 = 89,660.35 : x
  2. Step 2: Convert to fraction form
    161,279.13/222,572.79 = 89,660.35/x
  3. Step 3: Cross multiply
    161,279.13x = 222,572.79 × 89,660.35
  4. Step 4: Simplify right side
    161,279.13x = 19,955,954,251.88
  5. Step 5: Solve for x
    x = 19,955,954,251.88/161,279.13
  6. Step 6: Final answer
    x = 123,735.50

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1.5x scale

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.