Home / 149,579.77-206,442-98,584.21

Finding the Fourth Proportional to 149,579.77, 206,442 and 98,584.21

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Solution

The fourth proportional to 149,579.77, 206,442 and 98,584.21 is: 136,060.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,579.77 : 206,442 = 98,584.21 : x
  2. Step 2: Convert to fraction form
    149,579.77/206,442 = 98,584.21/x
  3. Step 3: Cross multiply
    149,579.77x = 206,442 × 98,584.21
  4. Step 4: Simplify right side
    149,579.77x = 20,351,921,480.82
  5. Step 5: Solve for x
    x = 20,351,921,480.82/149,579.77
  6. Step 6: Final answer
    x = 136,060.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.