Home / 131,786.60-197,694.30-127,639.40

Finding the Fourth Proportional to 131,786.60, 197,694.30 and 127,639.40

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Solution

The fourth proportional to 131,786.60, 197,694.30 and 127,639.40 is: 191,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,786.60 : 197,694.30 = 127,639.40 : x
  2. Step 2: Convert to fraction form
    131,786.60/197,694.30 = 127,639.40/x
  3. Step 3: Cross multiply
    131,786.60x = 197,694.30 × 127,639.40
  4. Step 4: Simplify right side
    131,786.60x = 25,233,581,835.42
  5. Step 5: Solve for x
    x = 25,233,581,835.42/131,786.60
  6. Step 6: Final answer
    x = 191,473.05

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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.