Home / 143,474.24-197,988.96-79,809.92

Finding the Fourth Proportional to 143,474.24, 197,988.96 and 79,809.92

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Solution

The fourth proportional to 143,474.24, 197,988.96 and 79,809.92 is: 110,134.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,474.24 : 197,988.96 = 79,809.92 : x
  2. Step 2: Convert to fraction form
    143,474.24/197,988.96 = 79,809.92/x
  3. Step 3: Cross multiply
    143,474.24x = 197,988.96 × 79,809.92
  4. Step 4: Simplify right side
    143,474.24x = 15,801,483,058.48
  5. Step 5: Solve for x
    x = 15,801,483,058.48/143,474.24
  6. Step 6: Final answer
    x = 110,134.64

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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.