Home / 226,581.40-312,690.56-129,803.96

Finding the Fourth Proportional to 226,581.40, 312,690.56 and 129,803.96

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Solution

The fourth proportional to 226,581.40, 312,690.56 and 129,803.96 is: 179,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,581.40 : 312,690.56 = 129,803.96 : x
  2. Step 2: Convert to fraction form
    226,581.40/312,690.56 = 129,803.96/x
  3. Step 3: Cross multiply
    226,581.40x = 312,690.56 × 129,803.96
  4. Step 4: Simplify right side
    226,581.40x = 40,588,472,942.62
  5. Step 5: Solve for x
    x = 40,588,472,942.62/226,581.40
  6. Step 6: Final answer
    x = 179,134.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.