Home / 212,067.69-318,522.51-126,842.73

Finding the Fourth Proportional to 212,067.69, 318,522.51 and 126,842.73

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Solution

The fourth proportional to 212,067.69, 318,522.51 and 126,842.73 is: 190,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,067.69 : 318,522.51 = 126,842.73 : x
  2. Step 2: Convert to fraction form
    212,067.69/318,522.51 = 126,842.73/x
  3. Step 3: Cross multiply
    212,067.69x = 318,522.51 × 126,842.73
  4. Step 4: Simplify right side
    212,067.69x = 40,402,264,734.85
  5. Step 5: Solve for x
    x = 40,402,264,734.85/212,067.69
  6. Step 6: Final answer
    x = 190,515.89

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1.5x scale

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.