Home / 144,742.20-217,113.30-127,231.80

Finding the Fourth Proportional to 144,742.20, 217,113.30 and 127,231.80

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Solution

The fourth proportional to 144,742.20, 217,113.30 and 127,231.80 is: 190,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,742.20 : 217,113.30 = 127,231.80 : x
  2. Step 2: Convert to fraction form
    144,742.20/217,113.30 = 127,231.80/x
  3. Step 3: Cross multiply
    144,742.20x = 217,113.30 × 127,231.80
  4. Step 4: Simplify right side
    144,742.20x = 27,623,715,962.94
  5. Step 5: Solve for x
    x = 27,623,715,962.94/144,742.20
  6. Step 6: Final answer
    x = 190,847.70

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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.