Home / 209,165.13-288,650.13-113,671.85

Finding the Fourth Proportional to 209,165.13, 288,650.13 and 113,671.85

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Solution

The fourth proportional to 209,165.13, 288,650.13 and 113,671.85 is: 156,868.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,165.13 : 288,650.13 = 113,671.85 : x
  2. Step 2: Convert to fraction form
    209,165.13/288,650.13 = 113,671.85/x
  3. Step 3: Cross multiply
    209,165.13x = 288,650.13 × 113,671.85
  4. Step 4: Simplify right side
    209,165.13x = 32,811,392,836.59
  5. Step 5: Solve for x
    x = 32,811,392,836.59/209,165.13
  6. Step 6: Final answer
    x = 156,868.37

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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.