Home / 131,880.92-181,895.25-113,515.28

Finding the Fourth Proportional to 131,880.92, 181,895.25 and 113,515.28

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Solution

The fourth proportional to 131,880.92, 181,895.25 and 113,515.28 is: 156,564.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,880.92 : 181,895.25 = 113,515.28 : x
  2. Step 2: Convert to fraction form
    131,880.92/181,895.25 = 113,515.28/x
  3. Step 3: Cross multiply
    131,880.92x = 181,895.25 × 113,515.28
  4. Step 4: Simplify right side
    131,880.92x = 20,647,890,536.59
  5. Step 5: Solve for x
    x = 20,647,890,536.59/131,880.92
  6. Step 6: Final answer
    x = 156,564.66

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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.