Home / 149,846.58-206,784.77-81,863.91

Finding the Fourth Proportional to 149,846.58, 206,784.77 and 81,863.91

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Solution

The fourth proportional to 149,846.58, 206,784.77 and 81,863.91 is: 112,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,846.58 : 206,784.77 = 81,863.91 : x
  2. Step 2: Convert to fraction form
    149,846.58/206,784.77 = 81,863.91/x
  3. Step 3: Cross multiply
    149,846.58x = 206,784.77 × 81,863.91
  4. Step 4: Simplify right side
    149,846.58x = 16,928,209,391.33
  5. Step 5: Solve for x
    x = 16,928,209,391.33/149,846.58
  6. Step 6: Final answer
    x = 112,970.28

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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.