Home / 143,420.24-197,932.20-79,762.16

Finding the Fourth Proportional to 143,420.24, 197,932.20 and 79,762.16

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Solution

The fourth proportional to 143,420.24, 197,932.20 and 79,762.16 is: 110,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,420.24 : 197,932.20 = 79,762.16 : x
  2. Step 2: Convert to fraction form
    143,420.24/197,932.20 = 79,762.16/x
  3. Step 3: Cross multiply
    143,420.24x = 197,932.20 × 79,762.16
  4. Step 4: Simplify right side
    143,420.24x = 15,787,499,805.55
  5. Step 5: Solve for x
    x = 15,787,499,805.55/143,420.24
  6. Step 6: Final answer
    x = 110,078.60

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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.