Home / 99,156.12-136,834.69-53,833.21

Finding the Fourth Proportional to 99,156.12, 136,834.69 and 53,833.21

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Solution

The fourth proportional to 99,156.12, 136,834.69 and 53,833.21 is: 74,289.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,156.12 : 136,834.69 = 53,833.21 : x
  2. Step 2: Convert to fraction form
    99,156.12/136,834.69 = 53,833.21/x
  3. Step 3: Cross multiply
    99,156.12x = 136,834.69 × 53,833.21
  4. Step 4: Simplify right side
    99,156.12x = 7,366,250,377.73
  5. Step 5: Solve for x
    x = 7,366,250,377.73/99,156.12
  6. Step 6: Final answer
    x = 74,289.41

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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.