Home / 143,397.96-197,887.94-79,735.20

Finding the Fourth Proportional to 143,397.96, 197,887.94 and 79,735.20

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Solution

The fourth proportional to 143,397.96, 197,887.94 and 79,735.20 is: 110,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,397.96 : 197,887.94 = 79,735.20 : x
  2. Step 2: Convert to fraction form
    143,397.96/197,887.94 = 79,735.20/x
  3. Step 3: Cross multiply
    143,397.96x = 197,887.94 × 79,735.20
  4. Step 4: Simplify right side
    143,397.96x = 15,778,634,473.49
  5. Step 5: Solve for x
    x = 15,778,634,473.49/143,397.96
  6. Step 6: Final answer
    x = 110,033.88

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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.