Home / 143,921.02-198,606.15-79,392.84

Finding the Fourth Proportional to 143,921.02, 198,606.15 and 79,392.84

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Solution

The fourth proportional to 143,921.02, 198,606.15 and 79,392.84 is: 109,559.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,921.02 : 198,606.15 = 79,392.84 : x
  2. Step 2: Convert to fraction form
    143,921.02/198,606.15 = 79,392.84/x
  3. Step 3: Cross multiply
    143,921.02x = 198,606.15 × 79,392.84
  4. Step 4: Simplify right side
    143,921.02x = 15,767,906,289.97
  5. Step 5: Solve for x
    x = 15,767,906,289.97/143,921.02
  6. Step 6: Final answer
    x = 109,559.44

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1.5x scale

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.