Home / 126,134.66-189,238.89-40,743.57

Finding the Fourth Proportional to 126,134.66, 189,238.89 and 40,743.57

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Solution

The fourth proportional to 126,134.66, 189,238.89 and 40,743.57 is: 61,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,134.66 : 189,238.89 = 40,743.57 : x
  2. Step 2: Convert to fraction form
    126,134.66/189,238.89 = 40,743.57/x
  3. Step 3: Cross multiply
    126,134.66x = 189,238.89 × 40,743.57
  4. Step 4: Simplify right side
    126,134.66x = 7,710,267,961.44
  5. Step 5: Solve for x
    x = 7,710,267,961.44/126,134.66
  6. Step 6: Final answer
    x = 61,127.28

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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.