Home / 104,982.28-144,876-67,278.40

Finding the Fourth Proportional to 104,982.28, 144,876 and 67,278.40

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Solution

The fourth proportional to 104,982.28, 144,876 and 67,278.40 is: 92,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,982.28 : 144,876 = 67,278.40 : x
  2. Step 2: Convert to fraction form
    104,982.28/144,876 = 67,278.40/x
  3. Step 3: Cross multiply
    104,982.28x = 144,876 × 67,278.40
  4. Step 4: Simplify right side
    104,982.28x = 9,747,025,478.40
  5. Step 5: Solve for x
    x = 9,747,025,478.40/104,982.28
  6. Step 6: Final answer
    x = 92,844.48

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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.