Home / 148,839.26-205,398.56-80,855.67

Finding the Fourth Proportional to 148,839.26, 205,398.56 and 80,855.67

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Solution

The fourth proportional to 148,839.26, 205,398.56 and 80,855.67 is: 111,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,839.26 : 205,398.56 = 80,855.67 : x
  2. Step 2: Convert to fraction form
    148,839.26/205,398.56 = 80,855.67/x
  3. Step 3: Cross multiply
    148,839.26x = 205,398.56 × 80,855.67
  4. Step 4: Simplify right side
    148,839.26x = 16,607,639,158.22
  5. Step 5: Solve for x
    x = 16,607,639,158.22/148,839.26
  6. Step 6: Final answer
    x = 111,581.04

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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.