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Finding the Fourth Proportional to 138,755.25, 191,482.23 and 75,093.04

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Solution

The fourth proportional to 138,755.25, 191,482.23 and 75,093.04 is: 103,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,755.25 : 191,482.23 = 75,093.04 : x
  2. Step 2: Convert to fraction form
    138,755.25/191,482.23 = 75,093.04/x
  3. Step 3: Cross multiply
    138,755.25x = 191,482.23 × 75,093.04
  4. Step 4: Simplify right side
    138,755.25x = 14,378,982,756.68
  5. Step 5: Solve for x
    x = 14,378,982,756.68/138,755.25
  6. Step 6: Final answer
    x = 103,628.39

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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.