Home / 126,880.38-190,320.84-51,013.89

Finding the Fourth Proportional to 126,880.38, 190,320.84 and 51,013.89

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Solution

The fourth proportional to 126,880.38, 190,320.84 and 51,013.89 is: 76,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,880.38 : 190,320.84 = 51,013.89 : x
  2. Step 2: Convert to fraction form
    126,880.38/190,320.84 = 51,013.89/x
  3. Step 3: Cross multiply
    126,880.38x = 190,320.84 × 51,013.89
  4. Step 4: Simplify right side
    126,880.38x = 9,709,006,396.47
  5. Step 5: Solve for x
    x = 9,709,006,396.47/126,880.38
  6. Step 6: Final answer
    x = 76,520.94

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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.