Home / 212,634.27-319,008.96-79,527.96

Finding the Fourth Proportional to 212,634.27, 319,008.96 and 79,527.96

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Solution

The fourth proportional to 212,634.27, 319,008.96 and 79,527.96 is: 119,313.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,634.27 : 319,008.96 = 79,527.96 : x
  2. Step 2: Convert to fraction form
    212,634.27/319,008.96 = 79,527.96/x
  3. Step 3: Cross multiply
    212,634.27x = 319,008.96 × 79,527.96
  4. Step 4: Simplify right side
    212,634.27x = 25,370,131,810.52
  5. Step 5: Solve for x
    x = 25,370,131,810.52/212,634.27
  6. Step 6: Final answer
    x = 119,313.47

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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.