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Finding the Fourth Proportional to 159,655.32, 220,320 and 88,034.04

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Solution

The fourth proportional to 159,655.32, 220,320 and 88,034.04 is: 121,484.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,655.32 : 220,320 = 88,034.04 : x
  2. Step 2: Convert to fraction form
    159,655.32/220,320 = 88,034.04/x
  3. Step 3: Cross multiply
    159,655.32x = 220,320 × 88,034.04
  4. Step 4: Simplify right side
    159,655.32x = 19,395,659,692.80
  5. Step 5: Solve for x
    x = 19,395,659,692.80/159,655.32
  6. Step 6: Final answer
    x = 121,484.58

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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.