Home / 149,817.52-206,746.77-81,834.46

Finding the Fourth Proportional to 149,817.52, 206,746.77 and 81,834.46

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Solution

The fourth proportional to 149,817.52, 206,746.77 and 81,834.46 is: 112,930.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,817.52 : 206,746.77 = 81,834.46 : x
  2. Step 2: Convert to fraction form
    149,817.52/206,746.77 = 81,834.46/x
  3. Step 3: Cross multiply
    149,817.52x = 206,746.77 × 81,834.46
  4. Step 4: Simplify right side
    149,817.52x = 16,919,010,279.69
  5. Step 5: Solve for x
    x = 16,919,010,279.69/149,817.52
  6. Step 6: Final answer
    x = 112,930.79

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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.