Home / 207,125.06-310,589.43-72,142.06

Finding the Fourth Proportional to 207,125.06, 310,589.43 and 72,142.06

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Solution

The fourth proportional to 207,125.06, 310,589.43 and 72,142.06 is: 108,178.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,125.06 : 310,589.43 = 72,142.06 : x
  2. Step 2: Convert to fraction form
    207,125.06/310,589.43 = 72,142.06/x
  3. Step 3: Cross multiply
    207,125.06x = 310,589.43 × 72,142.06
  4. Step 4: Simplify right side
    207,125.06x = 22,406,560,517.95
  5. Step 5: Solve for x
    x = 22,406,560,517.95/207,125.06
  6. Step 6: Final answer
    x = 108,178.90

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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.