Home / 126,642.15-189,963.23-33,147.90

Finding the Fourth Proportional to 126,642.15, 189,963.23 and 33,147.90

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Solution

The fourth proportional to 126,642.15, 189,963.23 and 33,147.90 is: 49,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,642.15 : 189,963.23 = 33,147.90 : x
  2. Step 2: Convert to fraction form
    126,642.15/189,963.23 = 33,147.90/x
  3. Step 3: Cross multiply
    126,642.15x = 189,963.23 × 33,147.90
  4. Step 4: Simplify right side
    126,642.15x = 6,296,881,985.98
  5. Step 5: Solve for x
    x = 6,296,881,985.98/126,642.15
  6. Step 6: Final answer
    x = 49,721.85

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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.