Home / 212,480.12-318,645.90-62,680.64

Finding the Fourth Proportional to 212,480.12, 318,645.90 and 62,680.64

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Solution

The fourth proportional to 212,480.12, 318,645.90 and 62,680.64 is: 93,999.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,480.12 : 318,645.90 = 62,680.64 : x
  2. Step 2: Convert to fraction form
    212,480.12/318,645.90 = 62,680.64/x
  3. Step 3: Cross multiply
    212,480.12x = 318,645.90 × 62,680.64
  4. Step 4: Simplify right side
    212,480.12x = 19,972,928,945.38
  5. Step 5: Solve for x
    x = 19,972,928,945.38/212,480.12
  6. Step 6: Final answer
    x = 93,999.05

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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.