Home / 212,034.97-318,091.85-69,890.22

Finding the Fourth Proportional to 212,034.97, 318,091.85 and 69,890.22

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Solution

The fourth proportional to 212,034.97, 318,091.85 and 69,890.22 is: 104,848.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,034.97 : 318,091.85 = 69,890.22 : x
  2. Step 2: Convert to fraction form
    212,034.97/318,091.85 = 69,890.22/x
  3. Step 3: Cross multiply
    212,034.97x = 318,091.85 × 69,890.22
  4. Step 4: Simplify right side
    212,034.97x = 22,231,510,751.63
  5. Step 5: Solve for x
    x = 22,231,510,751.63/212,034.97
  6. Step 6: Final answer
    x = 104,848.32

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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.