Home / 212,085.33-318,078.78-93,692.08

Finding the Fourth Proportional to 212,085.33, 318,078.78 and 93,692.08

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Solution

The fourth proportional to 212,085.33, 318,078.78 and 93,692.08 is: 140,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,085.33 : 318,078.78 = 93,692.08 : x
  2. Step 2: Convert to fraction form
    212,085.33/318,078.78 = 93,692.08/x
  3. Step 3: Cross multiply
    212,085.33x = 318,078.78 × 93,692.08
  4. Step 4: Simplify right side
    212,085.33x = 29,801,462,502.06
  5. Step 5: Solve for x
    x = 29,801,462,502.06/212,085.33
  6. Step 6: Final answer
    x = 140,516.38

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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.