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Finding the Fourth Proportional to 147,955, 204,177.90 and 80,887

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Solution

The fourth proportional to 147,955, 204,177.90 and 80,887 is: 111,624.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,955 : 204,177.90 = 80,887 : x
  2. Step 2: Convert to fraction form
    147,955/204,177.90 = 80,887/x
  3. Step 3: Cross multiply
    147,955x = 204,177.90 × 80,887
  4. Step 4: Simplify right side
    147,955x = 16,515,337,797.30
  5. Step 5: Solve for x
    x = 16,515,337,797.30/147,955
  6. Step 6: Final answer
    x = 111,624.06

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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.