Home / 143,205.30-215,037.45-113,867.10

Finding the Fourth Proportional to 143,205.30, 215,037.45 and 113,867.10

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Solution

The fourth proportional to 143,205.30, 215,037.45 and 113,867.10 is: 170,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,205.30 : 215,037.45 = 113,867.10 : x
  2. Step 2: Convert to fraction form
    143,205.30/215,037.45 = 113,867.10/x
  3. Step 3: Cross multiply
    143,205.30x = 215,037.45 × 113,867.10
  4. Step 4: Simplify right side
    143,205.30x = 24,485,690,822.90
  5. Step 5: Solve for x
    x = 24,485,690,822.90/143,205.30
  6. Step 6: Final answer
    x = 170,983.13

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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.