Home / 212,322.06-318,023.69-99,833.72

Finding the Fourth Proportional to 212,322.06, 318,023.69 and 99,833.72

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Solution

The fourth proportional to 212,322.06, 318,023.69 and 99,833.72 is: 149,534.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,322.06 : 318,023.69 = 99,833.72 : x
  2. Step 2: Convert to fraction form
    212,322.06/318,023.69 = 99,833.72/x
  3. Step 3: Cross multiply
    212,322.06x = 318,023.69 × 99,833.72
  4. Step 4: Simplify right side
    212,322.06x = 31,749,485,931.54
  5. Step 5: Solve for x
    x = 31,749,485,931.54/212,322.06
  6. Step 6: Final answer
    x = 149,534.56

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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.