Home / 112,930.34-155,842.80-61,942.04

Finding the Fourth Proportional to 112,930.34, 155,842.80 and 61,942.04

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Solution

The fourth proportional to 112,930.34, 155,842.80 and 61,942.04 is: 85,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,930.34 : 155,842.80 = 61,942.04 : x
  2. Step 2: Convert to fraction form
    112,930.34/155,842.80 = 61,942.04/x
  3. Step 3: Cross multiply
    112,930.34x = 155,842.80 × 61,942.04
  4. Step 4: Simplify right side
    112,930.34x = 9,653,220,951.31
  5. Step 5: Solve for x
    x = 9,653,220,951.31/112,930.34
  6. Step 6: Final answer
    x = 85,479.43

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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.