Home / 126,252.34-189,378.72-101,111.75

Finding the Fourth Proportional to 126,252.34, 189,378.72 and 101,111.75

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Solution

The fourth proportional to 126,252.34, 189,378.72 and 101,111.75 is: 151,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,252.34 : 189,378.72 = 101,111.75 : x
  2. Step 2: Convert to fraction form
    126,252.34/189,378.72 = 101,111.75/x
  3. Step 3: Cross multiply
    126,252.34x = 189,378.72 × 101,111.75
  4. Step 4: Simplify right side
    126,252.34x = 19,148,413,791.96
  5. Step 5: Solve for x
    x = 19,148,413,791.96/126,252.34
  6. Step 6: Final answer
    x = 151,667.80

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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.