Home / 112,397.92-155,107.31-61,409.55

Finding the Fourth Proportional to 112,397.92, 155,107.31 and 61,409.55

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Solution

The fourth proportional to 112,397.92, 155,107.31 and 61,409.55 is: 84,744.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,397.92 : 155,107.31 = 61,409.55 : x
  2. Step 2: Convert to fraction form
    112,397.92/155,107.31 = 61,409.55/x
  3. Step 3: Cross multiply
    112,397.92x = 155,107.31 × 61,409.55
  4. Step 4: Simplify right side
    112,397.92x = 9,525,070,262.33
  5. Step 5: Solve for x
    x = 9,525,070,262.33/112,397.92
  6. Step 6: Final answer
    x = 84,744.19

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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.