Home / 209,253.13-288,772.61-113,760.19

Finding the Fourth Proportional to 209,253.13, 288,772.61 and 113,760.19

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Solution

The fourth proportional to 209,253.13, 288,772.61 and 113,760.19 is: 156,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,253.13 : 288,772.61 = 113,760.19 : x
  2. Step 2: Convert to fraction form
    209,253.13/288,772.61 = 113,760.19/x
  3. Step 3: Cross multiply
    209,253.13x = 288,772.61 × 113,760.19
  4. Step 4: Simplify right side
    209,253.13x = 32,850,826,411.60
  5. Step 5: Solve for x
    x = 32,850,826,411.60/209,253.13
  6. Step 6: Final answer
    x = 156,990.85

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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.