Home / 231,049.47-318,836.85-129,054.63

Finding the Fourth Proportional to 231,049.47, 318,836.85 and 129,054.63

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Solution

The fourth proportional to 231,049.47, 318,836.85 and 129,054.63 is: 178,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,049.47 : 318,836.85 = 129,054.63 : x
  2. Step 2: Convert to fraction form
    231,049.47/318,836.85 = 129,054.63/x
  3. Step 3: Cross multiply
    231,049.47x = 318,836.85 × 129,054.63
  4. Step 4: Simplify right side
    231,049.47x = 41,147,371,707.12
  5. Step 5: Solve for x
    x = 41,147,371,707.12/231,049.47
  6. Step 6: Final answer
    x = 178,089.01

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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.