Home / 104,876.00-144,783.60-81,540.69

Finding the Fourth Proportional to 104,876.00, 144,783.60 and 81,540.69

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Solution

The fourth proportional to 104,876.00, 144,783.60 and 81,540.69 is: 112,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,876.00 : 144,783.60 = 81,540.69 : x
  2. Step 2: Convert to fraction form
    104,876.00/144,783.60 = 81,540.69/x
  3. Step 3: Cross multiply
    104,876.00x = 144,783.60 × 81,540.69
  4. Step 4: Simplify right side
    104,876.00x = 11,805,755,069.04
  5. Step 5: Solve for x
    x = 11,805,755,069.04/104,876.00
  6. Step 6: Final answer
    x = 112,568.70

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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.