Home / 143,188.43-197,621.57-103,035.11

Finding the Fourth Proportional to 143,188.43, 197,621.57 and 103,035.11

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Solution

The fourth proportional to 143,188.43, 197,621.57 and 103,035.11 is: 142,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,188.43 : 197,621.57 = 103,035.11 : x
  2. Step 2: Convert to fraction form
    143,188.43/197,621.57 = 103,035.11/x
  3. Step 3: Cross multiply
    143,188.43x = 197,621.57 × 103,035.11
  4. Step 4: Simplify right side
    143,188.43x = 20,361,959,472.80
  5. Step 5: Solve for x
    x = 20,361,959,472.80/143,188.43
  6. Step 6: Final answer
    x = 142,203.95

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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.