Home / 113,819.40-170,882.70-72,347.40

Finding the Fourth Proportional to 113,819.40, 170,882.70 and 72,347.40

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Solution

The fourth proportional to 113,819.40, 170,882.70 and 72,347.40 is: 108,618.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,819.40 : 170,882.70 = 72,347.40 : x
  2. Step 2: Convert to fraction form
    113,819.40/170,882.70 = 72,347.40/x
  3. Step 3: Cross multiply
    113,819.40x = 170,882.70 × 72,347.40
  4. Step 4: Simplify right side
    113,819.40x = 12,362,919,049.98
  5. Step 5: Solve for x
    x = 12,362,919,049.98/113,819.40
  6. Step 6: Final answer
    x = 108,618.73

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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.