Home / 198,140.53-296,981.91-91,301.11

Finding the Fourth Proportional to 198,140.53, 296,981.91 and 91,301.11

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Solution

The fourth proportional to 198,140.53, 296,981.91 and 91,301.11 is: 136,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,140.53 : 296,981.91 = 91,301.11 : x
  2. Step 2: Convert to fraction form
    198,140.53/296,981.91 = 91,301.11/x
  3. Step 3: Cross multiply
    198,140.53x = 296,981.91 × 91,301.11
  4. Step 4: Simplify right side
    198,140.53x = 27,114,778,032.92
  5. Step 5: Solve for x
    x = 27,114,778,032.92/198,140.53
  6. Step 6: Final answer
    x = 136,846.20

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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.