Home / 117,578.86-162,257.04-65,895.19

Finding the Fourth Proportional to 117,578.86, 162,257.04 and 65,895.19

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Solution

The fourth proportional to 117,578.86, 162,257.04 and 65,895.19 is: 90,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,578.86 : 162,257.04 = 65,895.19 : x
  2. Step 2: Convert to fraction form
    117,578.86/162,257.04 = 65,895.19/x
  3. Step 3: Cross multiply
    117,578.86x = 162,257.04 × 65,895.19
  4. Step 4: Simplify right side
    117,578.86x = 10,691,958,074.00
  5. Step 5: Solve for x
    x = 10,691,958,074.00/117,578.86
  6. Step 6: Final answer
    x = 90,934.36

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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.