Home / 130,959.82-196,308.21-42,148.06

Finding the Fourth Proportional to 130,959.82, 196,308.21 and 42,148.06

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Solution

The fourth proportional to 130,959.82, 196,308.21 and 42,148.06 is: 63,179.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,959.82 : 196,308.21 = 42,148.06 : x
  2. Step 2: Convert to fraction form
    130,959.82/196,308.21 = 42,148.06/x
  3. Step 3: Cross multiply
    130,959.82x = 196,308.21 × 42,148.06
  4. Step 4: Simplify right side
    130,959.82x = 8,274,010,213.57
  5. Step 5: Solve for x
    x = 8,274,010,213.57/130,959.82
  6. Step 6: Final answer
    x = 63,179.76

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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.