Home / 143,920.02-198,604.77-79,391.84

Finding the Fourth Proportional to 143,920.02, 198,604.77 and 79,391.84

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Solution

The fourth proportional to 143,920.02, 198,604.77 and 79,391.84 is: 109,558.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,920.02 : 198,604.77 = 79,391.84 : x
  2. Step 2: Convert to fraction form
    143,920.02/198,604.77 = 79,391.84/x
  3. Step 3: Cross multiply
    143,920.02x = 198,604.77 × 79,391.84
  4. Step 4: Simplify right side
    143,920.02x = 15,767,597,130.05
  5. Step 5: Solve for x
    x = 15,767,597,130.05/143,920.02
  6. Step 6: Final answer
    x = 109,558.05

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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.