Home / 126,188.61-189,309.03-51,308.76

Finding the Fourth Proportional to 126,188.61, 189,309.03 and 51,308.76

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Solution

The fourth proportional to 126,188.61, 189,309.03 and 51,308.76 is: 76,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,188.61 : 189,309.03 = 51,308.76 : x
  2. Step 2: Convert to fraction form
    126,188.61/189,309.03 = 51,308.76/x
  3. Step 3: Cross multiply
    126,188.61x = 189,309.03 × 51,308.76
  4. Step 4: Simplify right side
    126,188.61x = 9,713,211,586.10
  5. Step 5: Solve for x
    x = 9,713,211,586.10/126,188.61
  6. Step 6: Final answer
    x = 76,973.76

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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.