Home / 99,278.31-148,991.29-40,114.49

Finding the Fourth Proportional to 99,278.31, 148,991.29 and 40,114.49

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Solution

The fourth proportional to 99,278.31, 148,991.29 and 40,114.49 is: 60,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,278.31 : 148,991.29 = 40,114.49 : x
  2. Step 2: Convert to fraction form
    99,278.31/148,991.29 = 40,114.49/x
  3. Step 3: Cross multiply
    99,278.31x = 148,991.29 × 40,114.49
  4. Step 4: Simplify right side
    99,278.31x = 5,976,709,884.98
  5. Step 5: Solve for x
    x = 5,976,709,884.98/99,278.31
  6. Step 6: Final answer
    x = 60,201.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.