Home / 137,711.97-189,993.78-89,992.98

Finding the Fourth Proportional to 137,711.97, 189,993.78 and 89,992.98

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Solution

The fourth proportional to 137,711.97, 189,993.78 and 89,992.98 is: 124,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,711.97 : 189,993.78 = 89,992.98 : x
  2. Step 2: Convert to fraction form
    137,711.97/189,993.78 = 89,992.98/x
  3. Step 3: Cross multiply
    137,711.97x = 189,993.78 × 89,992.98
  4. Step 4: Simplify right side
    137,711.97x = 17,098,106,443.66
  5. Step 5: Solve for x
    x = 17,098,106,443.66/137,711.97
  6. Step 6: Final answer
    x = 124,158.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.