Home / 212,076.90-318,107.04-71,835.52

Finding the Fourth Proportional to 212,076.90, 318,107.04 and 71,835.52

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Solution

The fourth proportional to 212,076.90, 318,107.04 and 71,835.52 is: 107,750.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,076.90 : 318,107.04 = 71,835.52 : x
  2. Step 2: Convert to fraction form
    212,076.90/318,107.04 = 71,835.52/x
  3. Step 3: Cross multiply
    212,076.90x = 318,107.04 × 71,835.52
  4. Step 4: Simplify right side
    212,076.90x = 22,851,384,634.06
  5. Step 5: Solve for x
    x = 22,851,384,634.06/212,076.90
  6. Step 6: Final answer
    x = 107,750.47

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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.