Home / 118,791.12-163,869.57-73,454.61

Finding the Fourth Proportional to 118,791.12, 163,869.57 and 73,454.61

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Solution

The fourth proportional to 118,791.12, 163,869.57 and 73,454.61 is: 101,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,791.12 : 163,869.57 = 73,454.61 : x
  2. Step 2: Convert to fraction form
    118,791.12/163,869.57 = 73,454.61/x
  3. Step 3: Cross multiply
    118,791.12x = 163,869.57 × 73,454.61
  4. Step 4: Simplify right side
    118,791.12x = 12,036,975,355.22
  5. Step 5: Solve for x
    x = 12,036,975,355.22/118,791.12
  6. Step 6: Final answer
    x = 101,328.92

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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.