Home / 112,845.90-155,743.92-65,089.92

Finding the Fourth Proportional to 112,845.90, 155,743.92 and 65,089.92

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Solution

The fourth proportional to 112,845.90, 155,743.92 and 65,089.92 is: 89,833.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,845.90 : 155,743.92 = 65,089.92 : x
  2. Step 2: Convert to fraction form
    112,845.90/155,743.92 = 65,089.92/x
  3. Step 3: Cross multiply
    112,845.90x = 155,743.92 × 65,089.92
  4. Step 4: Simplify right side
    112,845.90x = 10,137,359,293.29
  5. Step 5: Solve for x
    x = 10,137,359,293.29/112,845.90
  6. Step 6: Final answer
    x = 89,833.65

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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.