Home / 118,990.14-178,040.52-117,661.74

Finding the Fourth Proportional to 118,990.14, 178,040.52 and 117,661.74

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Solution

The fourth proportional to 118,990.14, 178,040.52 and 117,661.74 is: 176,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,990.14 : 178,040.52 = 117,661.74 : x
  2. Step 2: Convert to fraction form
    118,990.14/178,040.52 = 117,661.74/x
  3. Step 3: Cross multiply
    118,990.14x = 178,040.52 × 117,661.74
  4. Step 4: Simplify right side
    118,990.14x = 20,948,557,373.70
  5. Step 5: Solve for x
    x = 20,948,557,373.70/118,990.14
  6. Step 6: Final answer
    x = 176,052.88

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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.