Home / 126,568.98-189,759.74-76,637.34

Finding the Fourth Proportional to 126,568.98, 189,759.74 and 76,637.34

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Solution

The fourth proportional to 126,568.98, 189,759.74 and 76,637.34 is: 114,899.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.98 : 189,759.74 = 76,637.34 : x
  2. Step 2: Convert to fraction form
    126,568.98/189,759.74 = 76,637.34/x
  3. Step 3: Cross multiply
    126,568.98x = 189,759.74 × 76,637.34
  4. Step 4: Simplify right side
    126,568.98x = 14,542,681,329.50
  5. Step 5: Solve for x
    x = 14,542,681,329.50/126,568.98
  6. Step 6: Final answer
    x = 114,899.25

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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.