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Finding the Fourth Proportional to 104,902.57, 144,820.37 and 81,883.03

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Solution

The fourth proportional to 104,902.57, 144,820.37 and 81,883.03 is: 113,041.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,902.57 : 144,820.37 = 81,883.03 : x
  2. Step 2: Convert to fraction form
    104,902.57/144,820.37 = 81,883.03/x
  3. Step 3: Cross multiply
    104,902.57x = 144,820.37 × 81,883.03
  4. Step 4: Simplify right side
    104,902.57x = 11,858,330,543.98
  5. Step 5: Solve for x
    x = 11,858,330,543.98/104,902.57
  6. Step 6: Final answer
    x = 113,041.38

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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.