Home / 143,977.60-215,966.40-136,201.60

Finding the Fourth Proportional to 143,977.60, 215,966.40 and 136,201.60

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Solution

The fourth proportional to 143,977.60, 215,966.40 and 136,201.60 is: 204,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,977.60 : 215,966.40 = 136,201.60 : x
  2. Step 2: Convert to fraction form
    143,977.60/215,966.40 = 136,201.60/x
  3. Step 3: Cross multiply
    143,977.60x = 215,966.40 × 136,201.60
  4. Step 4: Simplify right side
    143,977.60x = 29,414,969,226.24
  5. Step 5: Solve for x
    x = 29,414,969,226.24/143,977.60
  6. Step 6: Final answer
    x = 204,302.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.