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Finding the Fourth Proportional to 183,785.78, 275,716.94 and 57,420.92

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Solution

The fourth proportional to 183,785.78, 275,716.94 and 57,420.92 is: 86,143.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,785.78 : 275,716.94 = 57,420.92 : x
  2. Step 2: Convert to fraction form
    183,785.78/275,716.94 = 57,420.92/x
  3. Step 3: Cross multiply
    183,785.78x = 275,716.94 × 57,420.92
  4. Step 4: Simplify right side
    183,785.78x = 15,831,920,756.57
  5. Step 5: Solve for x
    x = 15,831,920,756.57/183,785.78
  6. Step 6: Final answer
    x = 86,143.34

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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.