Home / 212,440.37-318,857.65-107,333.15

Finding the Fourth Proportional to 212,440.37, 318,857.65 and 107,333.15

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Solution

The fourth proportional to 212,440.37, 318,857.65 and 107,333.15 is: 161,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,440.37 : 318,857.65 = 107,333.15 : x
  2. Step 2: Convert to fraction form
    212,440.37/318,857.65 = 107,333.15/x
  3. Step 3: Cross multiply
    212,440.37x = 318,857.65 × 107,333.15
  4. Step 4: Simplify right side
    212,440.37x = 34,223,994,113.48
  5. Step 5: Solve for x
    x = 34,223,994,113.48/212,440.37
  6. Step 6: Final answer
    x = 161,099.30

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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.