Home / 149,874.17-206,819.93-81,890.06

Finding the Fourth Proportional to 149,874.17, 206,819.93 and 81,890.06

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Solution

The fourth proportional to 149,874.17, 206,819.93 and 81,890.06 is: 113,004.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,874.17 : 206,819.93 = 81,890.06 : x
  2. Step 2: Convert to fraction form
    149,874.17/206,819.93 = 81,890.06/x
  3. Step 3: Cross multiply
    149,874.17x = 206,819.93 × 81,890.06
  4. Step 4: Simplify right side
    149,874.17x = 16,936,495,647.52
  5. Step 5: Solve for x
    x = 16,936,495,647.52/149,874.17
  6. Step 6: Final answer
    x = 113,004.77

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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.