Home / 112,815.14-155,684.92-61,829.89

Finding the Fourth Proportional to 112,815.14, 155,684.92 and 61,829.89

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Solution

The fourth proportional to 112,815.14, 155,684.92 and 61,829.89 is: 85,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,815.14 : 155,684.92 = 61,829.89 : x
  2. Step 2: Convert to fraction form
    112,815.14/155,684.92 = 61,829.89/x
  3. Step 3: Cross multiply
    112,815.14x = 155,684.92 × 61,829.89
  4. Step 4: Simplify right side
    112,815.14x = 9,625,981,169.11
  5. Step 5: Solve for x
    x = 9,625,981,169.11/112,815.14
  6. Step 6: Final answer
    x = 85,325.26

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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.