Home / 145,414.20-218,132.10-51,907.80

Finding the Fourth Proportional to 145,414.20, 218,132.10 and 51,907.80

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Solution

The fourth proportional to 145,414.20, 218,132.10 and 51,907.80 is: 77,865.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,414.20 : 218,132.10 = 51,907.80 : x
  2. Step 2: Convert to fraction form
    145,414.20/218,132.10 = 51,907.80/x
  3. Step 3: Cross multiply
    145,414.20x = 218,132.10 × 51,907.80
  4. Step 4: Simplify right side
    145,414.20x = 11,322,757,420.38
  5. Step 5: Solve for x
    x = 11,322,757,420.38/145,414.20
  6. Step 6: Final answer
    x = 77,865.56

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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.