Home / 194,712.40-268,680.10-113,021.72

Finding the Fourth Proportional to 194,712.40, 268,680.10 and 113,021.72

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Solution

The fourth proportional to 194,712.40, 268,680.10 and 113,021.72 is: 155,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,712.40 : 268,680.10 = 113,021.72 : x
  2. Step 2: Convert to fraction form
    194,712.40/268,680.10 = 113,021.72/x
  3. Step 3: Cross multiply
    194,712.40x = 268,680.10 × 113,021.72
  4. Step 4: Simplify right side
    194,712.40x = 30,366,687,031.77
  5. Step 5: Solve for x
    x = 30,366,687,031.77/194,712.40
  6. Step 6: Final answer
    x = 155,956.62

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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.