Home / 130,992.90-196,349.46-74,711.82

Finding the Fourth Proportional to 130,992.90, 196,349.46 and 74,711.82

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Solution

The fourth proportional to 130,992.90, 196,349.46 and 74,711.82 is: 111,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,992.90 : 196,349.46 = 74,711.82 : x
  2. Step 2: Convert to fraction form
    130,992.90/196,349.46 = 74,711.82/x
  3. Step 3: Cross multiply
    130,992.90x = 196,349.46 × 74,711.82
  4. Step 4: Simplify right side
    130,992.90x = 14,669,625,512.62
  5. Step 5: Solve for x
    x = 14,669,625,512.62/130,992.90
  6. Step 6: Final answer
    x = 111,987.94

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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.