Home / 143,367.37-197,851.95-78,839.26

Finding the Fourth Proportional to 143,367.37, 197,851.95 and 78,839.26

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Solution

The fourth proportional to 143,367.37, 197,851.95 and 78,839.26 is: 108,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,367.37 : 197,851.95 = 78,839.26 : x
  2. Step 2: Convert to fraction form
    143,367.37/197,851.95 = 78,839.26/x
  3. Step 3: Cross multiply
    143,367.37x = 197,851.95 × 78,839.26
  4. Step 4: Simplify right side
    143,367.37x = 15,598,500,832.93
  5. Step 5: Solve for x
    x = 15,598,500,832.93/143,367.37
  6. Step 6: Final answer
    x = 108,800.92

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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.