Home / 118,981.06-178,382.82-71,585.04

Finding the Fourth Proportional to 118,981.06, 178,382.82 and 71,585.04

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Solution

The fourth proportional to 118,981.06, 178,382.82 and 71,585.04 is: 107,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.06 : 178,382.82 = 71,585.04 : x
  2. Step 2: Convert to fraction form
    118,981.06/178,382.82 = 71,585.04/x
  3. Step 3: Cross multiply
    118,981.06x = 178,382.82 × 71,585.04
  4. Step 4: Simplify right side
    118,981.06x = 12,769,541,305.01
  5. Step 5: Solve for x
    x = 12,769,541,305.01/118,981.06
  6. Step 6: Final answer
    x = 107,324.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.