Home / 130,556.70-196,252.65-121,311.90

Finding the Fourth Proportional to 130,556.70, 196,252.65 and 121,311.90

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Solution

The fourth proportional to 130,556.70, 196,252.65 and 121,311.90 is: 182,355.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,556.70 : 196,252.65 = 121,311.90 : x
  2. Step 2: Convert to fraction form
    130,556.70/196,252.65 = 121,311.90/x
  3. Step 3: Cross multiply
    130,556.70x = 196,252.65 × 121,311.90
  4. Step 4: Simplify right side
    130,556.70x = 23,807,781,851.54
  5. Step 5: Solve for x
    x = 23,807,781,851.54/130,556.70
  6. Step 6: Final answer
    x = 182,355.88

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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.