Home / 212,625.90-318,938.85-106,337.70

Finding the Fourth Proportional to 212,625.90, 318,938.85 and 106,337.70

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Solution

The fourth proportional to 212,625.90, 318,938.85 and 106,337.70 is: 159,506.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,625.90 : 318,938.85 = 106,337.70 : x
  2. Step 2: Convert to fraction form
    212,625.90/318,938.85 = 106,337.70/x
  3. Step 3: Cross multiply
    212,625.90x = 318,938.85 × 106,337.70
  4. Step 4: Simplify right side
    212,625.90x = 33,915,223,749.65
  5. Step 5: Solve for x
    x = 33,915,223,749.65/212,625.90
  6. Step 6: Final answer
    x = 159,506.55

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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.