Home / 130,867.82-196,333.05-42,129.62

Finding the Fourth Proportional to 130,867.82, 196,333.05 and 42,129.62

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Solution

The fourth proportional to 130,867.82, 196,333.05 and 42,129.62 is: 63,204.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,867.82 : 196,333.05 = 42,129.62 : x
  2. Step 2: Convert to fraction form
    130,867.82/196,333.05 = 42,129.62/x
  3. Step 3: Cross multiply
    130,867.82x = 196,333.05 × 42,129.62
  4. Step 4: Simplify right side
    130,867.82x = 8,271,436,789.94
  5. Step 5: Solve for x
    x = 8,271,436,789.94/130,867.82
  6. Step 6: Final answer
    x = 63,204.51

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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.