Home / 149,722.60-206,613.84-81,736.94

Finding the Fourth Proportional to 149,722.60, 206,613.84 and 81,736.94

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Solution

The fourth proportional to 149,722.60, 206,613.84 and 81,736.94 is: 112,795.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,722.60 : 206,613.84 = 81,736.94 : x
  2. Step 2: Convert to fraction form
    149,722.60/206,613.84 = 81,736.94/x
  3. Step 3: Cross multiply
    149,722.60x = 206,613.84 × 81,736.94
  4. Step 4: Simplify right side
    149,722.60x = 16,887,983,043.25
  5. Step 5: Solve for x
    x = 16,887,983,043.25/149,722.60
  6. Step 6: Final answer
    x = 112,795.15

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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.