Home / 212,265.96-318,331.32-70,084.80

Finding the Fourth Proportional to 212,265.96, 318,331.32 and 70,084.80

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Solution

The fourth proportional to 212,265.96, 318,331.32 and 70,084.80 is: 105,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,265.96 : 318,331.32 = 70,084.80 : x
  2. Step 2: Convert to fraction form
    212,265.96/318,331.32 = 70,084.80/x
  3. Step 3: Cross multiply
    212,265.96x = 318,331.32 × 70,084.80
  4. Step 4: Simplify right side
    212,265.96x = 22,310,186,895.94
  5. Step 5: Solve for x
    x = 22,310,186,895.94/212,265.96
  6. Step 6: Final answer
    x = 105,104.87

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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.