Home / 126,661.58-189,931.01-51,751.97

Finding the Fourth Proportional to 126,661.58, 189,931.01 and 51,751.97

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Solution

The fourth proportional to 126,661.58, 189,931.01 and 51,751.97 is: 77,602.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,661.58 : 189,931.01 = 51,751.97 : x
  2. Step 2: Convert to fraction form
    126,661.58/189,931.01 = 51,751.97/x
  3. Step 3: Cross multiply
    126,661.58x = 189,931.01 × 51,751.97
  4. Step 4: Simplify right side
    126,661.58x = 9,829,302,723.17
  5. Step 5: Solve for x
    x = 9,829,302,723.17/126,661.58
  6. Step 6: Final answer
    x = 77,602.88

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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.