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Finding the Fourth Proportional to 104,446.34, 144,168.75 and 66,720.59

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Solution

The fourth proportional to 104,446.34, 144,168.75 and 66,720.59 is: 92,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,446.34 : 144,168.75 = 66,720.59 : x
  2. Step 2: Convert to fraction form
    104,446.34/144,168.75 = 66,720.59/x
  3. Step 3: Cross multiply
    104,446.34x = 144,168.75 × 66,720.59
  4. Step 4: Simplify right side
    104,446.34x = 9,619,023,380.05
  5. Step 5: Solve for x
    x = 9,619,023,380.05/104,446.34
  6. Step 6: Final answer
    x = 92,095.36

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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.