Home / 112,709.91-155,537.78-62,407.83

Finding the Fourth Proportional to 112,709.91, 155,537.78 and 62,407.83

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Solution

The fourth proportional to 112,709.91, 155,537.78 and 62,407.83 is: 86,121.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,709.91 : 155,537.78 = 62,407.83 : x
  2. Step 2: Convert to fraction form
    112,709.91/155,537.78 = 62,407.83/x
  3. Step 3: Cross multiply
    112,709.91x = 155,537.78 × 62,407.83
  4. Step 4: Simplify right side
    112,709.91x = 9,706,775,020.78
  5. Step 5: Solve for x
    x = 9,706,775,020.78/112,709.91
  6. Step 6: Final answer
    x = 86,121.75

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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.