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Finding the Fourth Proportional to 160,129.44, 220,990.10 and 88,507.94

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Solution

The fourth proportional to 160,129.44, 220,990.10 and 88,507.94 is: 122,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,129.44 : 220,990.10 = 88,507.94 : x
  2. Step 2: Convert to fraction form
    160,129.44/220,990.10 = 88,507.94/x
  3. Step 3: Cross multiply
    160,129.44x = 220,990.10 × 88,507.94
  4. Step 4: Simplify right side
    160,129.44x = 19,559,378,511.39
  5. Step 5: Solve for x
    x = 19,559,378,511.39/160,129.44
  6. Step 6: Final answer
    x = 122,147.30

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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.