Home / 148,780.26-205,316.10-80,796.69

Finding the Fourth Proportional to 148,780.26, 205,316.10 and 80,796.69

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Solution

The fourth proportional to 148,780.26, 205,316.10 and 80,796.69 is: 111,499.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,780.26 : 205,316.10 = 80,796.69 : x
  2. Step 2: Convert to fraction form
    148,780.26/205,316.10 = 80,796.69/x
  3. Step 3: Cross multiply
    148,780.26x = 205,316.10 × 80,796.69
  4. Step 4: Simplify right side
    148,780.26x = 16,588,861,283.71
  5. Step 5: Solve for x
    x = 16,588,861,283.71/148,780.26
  6. Step 6: Final answer
    x = 111,499.07

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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.