Home / 177,839.52-266,935.68-78,069.12

Finding the Fourth Proportional to 177,839.52, 266,935.68 and 78,069.12

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Solution

The fourth proportional to 177,839.52, 266,935.68 and 78,069.12 is: 117,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,839.52 : 266,935.68 = 78,069.12 : x
  2. Step 2: Convert to fraction form
    177,839.52/266,935.68 = 78,069.12/x
  3. Step 3: Cross multiply
    177,839.52x = 266,935.68 × 78,069.12
  4. Step 4: Simplify right side
    177,839.52x = 20,839,433,634.20
  5. Step 5: Solve for x
    x = 20,839,433,634.20/177,839.52
  6. Step 6: Final answer
    x = 117,181.12

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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.