Home / 303,107.45-454,661.09-103,427.82

Finding the Fourth Proportional to 303,107.45, 454,661.09 and 103,427.82

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Solution

The fourth proportional to 303,107.45, 454,661.09 and 103,427.82 is: 155,141.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,107.45 : 454,661.09 = 103,427.82 : x
  2. Step 2: Convert to fraction form
    303,107.45/454,661.09 = 103,427.82/x
  3. Step 3: Cross multiply
    303,107.45x = 454,661.09 × 103,427.82
  4. Step 4: Simplify right side
    303,107.45x = 47,024,604,125.04
  5. Step 5: Solve for x
    x = 47,024,604,125.04/303,107.45
  6. Step 6: Final answer
    x = 155,141.70

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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.