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Finding the Fourth Proportional to 159,907.34, 220,680.78 and 88,287.14

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Solution

The fourth proportional to 159,907.34, 220,680.78 and 88,287.14 is: 121,841.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,907.34 : 220,680.78 = 88,287.14 : x
  2. Step 2: Convert to fraction form
    159,907.34/220,680.78 = 88,287.14/x
  3. Step 3: Cross multiply
    159,907.34x = 220,680.78 × 88,287.14
  4. Step 4: Simplify right side
    159,907.34x = 19,483,274,919.17
  5. Step 5: Solve for x
    x = 19,483,274,919.17/159,907.34
  6. Step 6: Final answer
    x = 121,841.03

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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.