Home / 212,454.34-318,682.24-79,333.14

Finding the Fourth Proportional to 212,454.34, 318,682.24 and 79,333.14

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Solution

The fourth proportional to 212,454.34, 318,682.24 and 79,333.14 is: 118,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,454.34 : 318,682.24 = 79,333.14 : x
  2. Step 2: Convert to fraction form
    212,454.34/318,682.24 = 79,333.14/x
  3. Step 3: Cross multiply
    212,454.34x = 318,682.24 × 79,333.14
  4. Step 4: Simplify right side
    212,454.34x = 25,282,062,761.43
  5. Step 5: Solve for x
    x = 25,282,062,761.43/212,454.34
  6. Step 6: Final answer
    x = 118,999.98

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1.5x scale

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.