Home / 197,690.76-296,491.65-90,972.36

Finding the Fourth Proportional to 197,690.76, 296,491.65 and 90,972.36

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Solution

The fourth proportional to 197,690.76, 296,491.65 and 90,972.36 is: 136,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,690.76 : 296,491.65 = 90,972.36 : x
  2. Step 2: Convert to fraction form
    197,690.76/296,491.65 = 90,972.36/x
  3. Step 3: Cross multiply
    197,690.76x = 296,491.65 × 90,972.36
  4. Step 4: Simplify right side
    197,690.76x = 26,972,545,120.79
  5. Step 5: Solve for x
    x = 26,972,545,120.79/197,690.76
  6. Step 6: Final answer
    x = 136,438.07

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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.