Home / 149,659.83-206,528.73-81,677.94

Finding the Fourth Proportional to 149,659.83, 206,528.73 and 81,677.94

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Solution

The fourth proportional to 149,659.83, 206,528.73 and 81,677.94 is: 112,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,659.83 : 206,528.73 = 81,677.94 : x
  2. Step 2: Convert to fraction form
    149,659.83/206,528.73 = 81,677.94/x
  3. Step 3: Cross multiply
    149,659.83x = 206,528.73 × 81,677.94
  4. Step 4: Simplify right side
    149,659.83x = 16,868,841,217.22
  5. Step 5: Solve for x
    x = 16,868,841,217.22/149,659.83
  6. Step 6: Final answer
    x = 112,714.56

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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.