Home / 272,093.10-408,143.78-103,622.75

Finding the Fourth Proportional to 272,093.10, 408,143.78 and 103,622.75

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Solution

The fourth proportional to 272,093.10, 408,143.78 and 103,622.75 is: 155,435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,093.10 : 408,143.78 = 103,622.75 : x
  2. Step 2: Convert to fraction form
    272,093.10/408,143.78 = 103,622.75/x
  3. Step 3: Cross multiply
    272,093.10x = 408,143.78 × 103,622.75
  4. Step 4: Simplify right side
    272,093.10x = 42,292,978,320.16
  5. Step 5: Solve for x
    x = 42,292,978,320.16/272,093.10
  6. Step 6: Final answer
    x = 155,435.69

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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.