Home / 131,426.84-197,133.17-75,231.87

Finding the Fourth Proportional to 131,426.84, 197,133.17 and 75,231.87

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Solution

The fourth proportional to 131,426.84, 197,133.17 and 75,231.87 is: 112,843.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.84 : 197,133.17 = 75,231.87 : x
  2. Step 2: Convert to fraction form
    131,426.84/197,133.17 = 75,231.87/x
  3. Step 3: Cross multiply
    131,426.84x = 197,133.17 × 75,231.87
  4. Step 4: Simplify right side
    131,426.84x = 14,830,696,641.97
  5. Step 5: Solve for x
    x = 14,830,696,641.97/131,426.84
  6. Step 6: Final answer
    x = 112,843.75

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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.