Home / 127,144.62-190,733.67-47,171.70

Finding the Fourth Proportional to 127,144.62, 190,733.67 and 47,171.70

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Solution

The fourth proportional to 127,144.62, 190,733.67 and 47,171.70 is: 70,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,144.62 : 190,733.67 = 47,171.70 : x
  2. Step 2: Convert to fraction form
    127,144.62/190,733.67 = 47,171.70/x
  3. Step 3: Cross multiply
    127,144.62x = 190,733.67 × 47,171.70
  4. Step 4: Simplify right side
    127,144.62x = 8,997,231,461.14
  5. Step 5: Solve for x
    x = 8,997,231,461.14/127,144.62
  6. Step 6: Final answer
    x = 70,763.76

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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.