Home / 212,016.24-318,093.39-99,707.64

Finding the Fourth Proportional to 212,016.24, 318,093.39 and 99,707.64

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Solution

The fourth proportional to 212,016.24, 318,093.39 and 99,707.64 is: 149,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,016.24 : 318,093.39 = 99,707.64 : x
  2. Step 2: Convert to fraction form
    212,016.24/318,093.39 = 99,707.64/x
  3. Step 3: Cross multiply
    212,016.24x = 318,093.39 × 99,707.64
  4. Step 4: Simplify right side
    212,016.24x = 31,716,341,216.50
  5. Step 5: Solve for x
    x = 31,716,341,216.50/212,016.24
  6. Step 6: Final answer
    x = 149,593.92

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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.