Home / 130,818.75-196,257.38-47,712.75

Finding the Fourth Proportional to 130,818.75, 196,257.38 and 47,712.75

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Solution

The fourth proportional to 130,818.75, 196,257.38 and 47,712.75 is: 71,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,818.75 : 196,257.38 = 47,712.75 : x
  2. Step 2: Convert to fraction form
    130,818.75/196,257.38 = 47,712.75/x
  3. Step 3: Cross multiply
    130,818.75x = 196,257.38 × 47,712.75
  4. Step 4: Simplify right side
    130,818.75x = 9,363,979,069.03
  5. Step 5: Solve for x
    x = 9,363,979,069.03/130,818.75
  6. Step 6: Final answer
    x = 71,579.79

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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.