Home / 161,335.32-222,644.88-89,721.60

Finding the Fourth Proportional to 161,335.32, 222,644.88 and 89,721.60

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Solution

The fourth proportional to 161,335.32, 222,644.88 and 89,721.60 is: 123,817.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,335.32 : 222,644.88 = 89,721.60 : x
  2. Step 2: Convert to fraction form
    161,335.32/222,644.88 = 89,721.60/x
  3. Step 3: Cross multiply
    161,335.32x = 222,644.88 × 89,721.60
  4. Step 4: Simplify right side
    161,335.32x = 19,976,054,865.41
  5. Step 5: Solve for x
    x = 19,976,054,865.41/161,335.32
  6. Step 6: Final answer
    x = 123,817.00

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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.