Home / 131,979.40-197,393.10-118,040.20

Finding the Fourth Proportional to 131,979.40, 197,393.10 and 118,040.20

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Solution

The fourth proportional to 131,979.40, 197,393.10 and 118,040.20 is: 176,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,979.40 : 197,393.10 = 118,040.20 : x
  2. Step 2: Convert to fraction form
    131,979.40/197,393.10 = 118,040.20/x
  3. Step 3: Cross multiply
    131,979.40x = 197,393.10 × 118,040.20
  4. Step 4: Simplify right side
    131,979.40x = 23,300,321,002.62
  5. Step 5: Solve for x
    x = 23,300,321,002.62/131,979.40
  6. Step 6: Final answer
    x = 176,545.14

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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.