Home / 143,125.86-197,504.55-79,463.64

Finding the Fourth Proportional to 143,125.86, 197,504.55 and 79,463.64

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Solution

The fourth proportional to 143,125.86, 197,504.55 and 79,463.64 is: 109,654.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,125.86 : 197,504.55 = 79,463.64 : x
  2. Step 2: Convert to fraction form
    143,125.86/197,504.55 = 79,463.64/x
  3. Step 3: Cross multiply
    143,125.86x = 197,504.55 × 79,463.64
  4. Step 4: Simplify right side
    143,125.86x = 15,694,430,459.56
  5. Step 5: Solve for x
    x = 15,694,430,459.56/143,125.86
  6. Step 6: Final answer
    x = 109,654.75

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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.