Home / 129,915.18-194,878.26-41,166.72

Finding the Fourth Proportional to 129,915.18, 194,878.26 and 41,166.72

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Solution

The fourth proportional to 129,915.18, 194,878.26 and 41,166.72 is: 61,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,915.18 : 194,878.26 = 41,166.72 : x
  2. Step 2: Convert to fraction form
    129,915.18/194,878.26 = 41,166.72/x
  3. Step 3: Cross multiply
    129,915.18x = 194,878.26 × 41,166.72
  4. Step 4: Simplify right side
    129,915.18x = 8,022,498,763.51
  5. Step 5: Solve for x
    x = 8,022,498,763.51/129,915.18
  6. Step 6: Final answer
    x = 61,751.82

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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.