Home / 83,172.29-124,908.08-76,496.67

Finding the Fourth Proportional to 83,172.29, 124,908.08 and 76,496.67

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Solution

The fourth proportional to 83,172.29, 124,908.08 and 76,496.67 is: 114,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,172.29 : 124,908.08 = 76,496.67 : x
  2. Step 2: Convert to fraction form
    83,172.29/124,908.08 = 76,496.67/x
  3. Step 3: Cross multiply
    83,172.29x = 124,908.08 × 76,496.67
  4. Step 4: Simplify right side
    83,172.29x = 9,555,051,793.61
  5. Step 5: Solve for x
    x = 9,555,051,793.61/83,172.29
  6. Step 6: Final answer
    x = 114,882.64

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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.