Home / 212,218.11-318,327.54-70,071.33

Finding the Fourth Proportional to 212,218.11, 318,327.54 and 70,071.33

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Solution

The fourth proportional to 212,218.11, 318,327.54 and 70,071.33 is: 105,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,218.11 : 318,327.54 = 70,071.33 : x
  2. Step 2: Convert to fraction form
    212,218.11/318,327.54 = 70,071.33/x
  3. Step 3: Cross multiply
    212,218.11x = 318,327.54 × 70,071.33
  4. Step 4: Simplify right side
    212,218.11x = 22,305,634,103.43
  5. Step 5: Solve for x
    x = 22,305,634,103.43/212,218.11
  6. Step 6: Final answer
    x = 105,107.12

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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.