Home / 149,433.24-206,216.56-81,450.21

Finding the Fourth Proportional to 149,433.24, 206,216.56 and 81,450.21

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Solution

The fourth proportional to 149,433.24, 206,216.56 and 81,450.21 is: 112,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,433.24 : 206,216.56 = 81,450.21 : x
  2. Step 2: Convert to fraction form
    149,433.24/206,216.56 = 81,450.21/x
  3. Step 3: Cross multiply
    149,433.24x = 206,216.56 × 81,450.21
  4. Step 4: Simplify right side
    149,433.24x = 16,796,382,117.48
  5. Step 5: Solve for x
    x = 16,796,382,117.48/149,433.24
  6. Step 6: Final answer
    x = 112,400.58

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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.