Home / 149,449.07-206,235.58-81,467.36

Finding the Fourth Proportional to 149,449.07, 206,235.58 and 81,467.36

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Solution

The fourth proportional to 149,449.07, 206,235.58 and 81,467.36 is: 112,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,449.07 : 206,235.58 = 81,467.36 : x
  2. Step 2: Convert to fraction form
    149,449.07/206,235.58 = 81,467.36/x
  3. Step 3: Cross multiply
    149,449.07x = 206,235.58 × 81,467.36
  4. Step 4: Simplify right side
    149,449.07x = 16,801,467,005.82
  5. Step 5: Solve for x
    x = 16,801,467,005.82/149,449.07
  6. Step 6: Final answer
    x = 112,422.70

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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.