Home / 149,899.80-224,738.48-90,721.40

Finding the Fourth Proportional to 149,899.80, 224,738.48 and 90,721.40

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Solution

The fourth proportional to 149,899.80, 224,738.48 and 90,721.40 is: 136,014.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,899.80 : 224,738.48 = 90,721.40 : x
  2. Step 2: Convert to fraction form
    149,899.80/224,738.48 = 90,721.40/x
  3. Step 3: Cross multiply
    149,899.80x = 224,738.48 × 90,721.40
  4. Step 4: Simplify right side
    149,899.80x = 20,388,589,539.47
  5. Step 5: Solve for x
    x = 20,388,589,539.47/149,899.80
  6. Step 6: Final answer
    x = 136,014.79

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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.