Home / 212,105.13-318,076.89-93,711.88

Finding the Fourth Proportional to 212,105.13, 318,076.89 and 93,711.88

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Solution

The fourth proportional to 212,105.13, 318,076.89 and 93,711.88 is: 140,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,105.13 : 318,076.89 = 93,711.88 : x
  2. Step 2: Convert to fraction form
    212,105.13/318,076.89 = 93,711.88/x
  3. Step 3: Cross multiply
    212,105.13x = 318,076.89 × 93,711.88
  4. Step 4: Simplify right side
    212,105.13x = 29,807,583,346.45
  5. Step 5: Solve for x
    x = 29,807,583,346.45/212,105.13
  6. Step 6: Final answer
    x = 140,532.12

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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.