Home / 209,329.97-288,872.65-113,834.61

Finding the Fourth Proportional to 209,329.97, 288,872.65 and 113,834.61

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Solution

The fourth proportional to 209,329.97, 288,872.65 and 113,834.61 is: 157,090.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,329.97 : 288,872.65 = 113,834.61 : x
  2. Step 2: Convert to fraction form
    209,329.97/288,872.65 = 113,834.61/x
  3. Step 3: Cross multiply
    209,329.97x = 288,872.65 × 113,834.61
  4. Step 4: Simplify right side
    209,329.97x = 32,883,705,966.52
  5. Step 5: Solve for x
    x = 32,883,705,966.52/209,329.97
  6. Step 6: Final answer
    x = 157,090.29

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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.