Home / 212,627.40-318,941.10-106,339.20

Finding the Fourth Proportional to 212,627.40, 318,941.10 and 106,339.20

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Solution

The fourth proportional to 212,627.40, 318,941.10 and 106,339.20 is: 159,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,627.40 : 318,941.10 = 106,339.20 : x
  2. Step 2: Convert to fraction form
    212,627.40/318,941.10 = 106,339.20/x
  3. Step 3: Cross multiply
    212,627.40x = 318,941.10 × 106,339.20
  4. Step 4: Simplify right side
    212,627.40x = 33,915,941,421.12
  5. Step 5: Solve for x
    x = 33,915,941,421.12/212,627.40
  6. Step 6: Final answer
    x = 159,508.80

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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.