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Finding the Fourth Proportional to 160,029.85, 220,839.53 and 88,405.20

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Solution

The fourth proportional to 160,029.85, 220,839.53 and 88,405.20 is: 121,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,029.85 : 220,839.53 = 88,405.20 : x
  2. Step 2: Convert to fraction form
    160,029.85/220,839.53 = 88,405.20/x
  3. Step 3: Cross multiply
    160,029.85x = 220,839.53 × 88,405.20
  4. Step 4: Simplify right side
    160,029.85x = 19,523,362,817.56
  5. Step 5: Solve for x
    x = 19,523,362,817.56/160,029.85
  6. Step 6: Final answer
    x = 121,998.26

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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.