Home / 143,127.20-197,505.24-79,461.20

Finding the Fourth Proportional to 143,127.20, 197,505.24 and 79,461.20

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Solution

The fourth proportional to 143,127.20, 197,505.24 and 79,461.20 is: 109,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,127.20 : 197,505.24 = 79,461.20 : x
  2. Step 2: Convert to fraction form
    143,127.20/197,505.24 = 79,461.20/x
  3. Step 3: Cross multiply
    143,127.20x = 197,505.24 × 79,461.20
  4. Step 4: Simplify right side
    143,127.20x = 15,694,003,376.69
  5. Step 5: Solve for x
    x = 15,694,003,376.69/143,127.20
  6. Step 6: Final answer
    x = 109,650.74

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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.