Home / 143,873.50-198,571.08-90,204.52

Finding the Fourth Proportional to 143,873.50, 198,571.08 and 90,204.52

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Solution

The fourth proportional to 143,873.50, 198,571.08 and 90,204.52 is: 124,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,873.50 : 198,571.08 = 90,204.52 : x
  2. Step 2: Convert to fraction form
    143,873.50/198,571.08 = 90,204.52/x
  3. Step 3: Cross multiply
    143,873.50x = 198,571.08 × 90,204.52
  4. Step 4: Simplify right side
    143,873.50x = 17,912,008,957.28
  5. Step 5: Solve for x
    x = 17,912,008,957.28/143,873.50
  6. Step 6: Final answer
    x = 124,498.32

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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.