Home / 126,435.69-189,681.25-47,549.92

Finding the Fourth Proportional to 126,435.69, 189,681.25 and 47,549.92

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Solution

The fourth proportional to 126,435.69, 189,681.25 and 47,549.92 is: 71,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,435.69 : 189,681.25 = 47,549.92 : x
  2. Step 2: Convert to fraction form
    126,435.69/189,681.25 = 47,549.92/x
  3. Step 3: Cross multiply
    126,435.69x = 189,681.25 × 47,549.92
  4. Step 4: Simplify right side
    126,435.69x = 9,019,328,263
  5. Step 5: Solve for x
    x = 9,019,328,263/126,435.69
  6. Step 6: Final answer
    x = 71,335.31

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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.