Home / 131,384.97-197,315.03-121,378.94

Finding the Fourth Proportional to 131,384.97, 197,315.03 and 121,378.94

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Solution

The fourth proportional to 131,384.97, 197,315.03 and 121,378.94 is: 182,287.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,384.97 : 197,315.03 = 121,378.94 : x
  2. Step 2: Convert to fraction form
    131,384.97/197,315.03 = 121,378.94/x
  3. Step 3: Cross multiply
    131,384.97x = 197,315.03 × 121,378.94
  4. Step 4: Simplify right side
    131,384.97x = 23,949,889,244.27
  5. Step 5: Solve for x
    x = 23,949,889,244.27/131,384.97
  6. Step 6: Final answer
    x = 182,287.89

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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.