Home / 126,643.41-189,876.56-55,531.89

Finding the Fourth Proportional to 126,643.41, 189,876.56 and 55,531.89

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Solution

The fourth proportional to 126,643.41, 189,876.56 and 55,531.89 is: 83,259.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,643.41 : 189,876.56 = 55,531.89 : x
  2. Step 2: Convert to fraction form
    126,643.41/189,876.56 = 55,531.89/x
  3. Step 3: Cross multiply
    126,643.41x = 189,876.56 × 55,531.89
  4. Step 4: Simplify right side
    126,643.41x = 10,544,203,965.84
  5. Step 5: Solve for x
    x = 10,544,203,965.84/126,643.41
  6. Step 6: Final answer
    x = 83,259.00

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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.