Home / 212,199.96-318,292.38-54,429.96

Finding the Fourth Proportional to 212,199.96, 318,292.38 and 54,429.96

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Solution

The fourth proportional to 212,199.96, 318,292.38 and 54,429.96 is: 81,643.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,199.96 : 318,292.38 = 54,429.96 : x
  2. Step 2: Convert to fraction form
    212,199.96/318,292.38 = 54,429.96/x
  3. Step 3: Cross multiply
    212,199.96x = 318,292.38 × 54,429.96
  4. Step 4: Simplify right side
    212,199.96x = 17,324,641,511.70
  5. Step 5: Solve for x
    x = 17,324,641,511.70/212,199.96
  6. Step 6: Final answer
    x = 81,643.00

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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.