Home / 146,101.20-218,994.39-71,271.78

Finding the Fourth Proportional to 146,101.20, 218,994.39 and 71,271.78

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Solution

The fourth proportional to 146,101.20, 218,994.39 and 71,271.78 is: 106,830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,101.20 : 218,994.39 = 71,271.78 : x
  2. Step 2: Convert to fraction form
    146,101.20/218,994.39 = 71,271.78/x
  3. Step 3: Cross multiply
    146,101.20x = 218,994.39 × 71,271.78
  4. Step 4: Simplify right side
    146,101.20x = 15,608,119,985.31
  5. Step 5: Solve for x
    x = 15,608,119,985.31/146,101.20
  6. Step 6: Final answer
    x = 106,830.88

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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.