Home / 193,378.23-289,981.71-103,399.11

Finding the Fourth Proportional to 193,378.23, 289,981.71 and 103,399.11

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Solution

The fourth proportional to 193,378.23, 289,981.71 and 103,399.11 is: 155,052.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,378.23 : 289,981.71 = 103,399.11 : x
  2. Step 2: Convert to fraction form
    193,378.23/289,981.71 = 103,399.11/x
  3. Step 3: Cross multiply
    193,378.23x = 289,981.71 × 103,399.11
  4. Step 4: Simplify right side
    193,378.23x = 29,983,850,730.28
  5. Step 5: Solve for x
    x = 29,983,850,730.28/193,378.23
  6. Step 6: Final answer
    x = 155,052.88

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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.