Home / 129,355.20-194,039.28-46,249.20

Finding the Fourth Proportional to 129,355.20, 194,039.28 and 46,249.20

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Solution

The fourth proportional to 129,355.20, 194,039.28 and 46,249.20 is: 69,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,355.20 : 194,039.28 = 46,249.20 : x
  2. Step 2: Convert to fraction form
    129,355.20/194,039.28 = 46,249.20/x
  3. Step 3: Cross multiply
    129,355.20x = 194,039.28 × 46,249.20
  4. Step 4: Simplify right side
    129,355.20x = 8,974,161,468.58
  5. Step 5: Solve for x
    x = 8,974,161,468.58/129,355.20
  6. Step 6: Final answer
    x = 69,376.12

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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.