Home / 143,361.13-197,850.33-79,704.85

Finding the Fourth Proportional to 143,361.13, 197,850.33 and 79,704.85

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Solution

The fourth proportional to 143,361.13, 197,850.33 and 79,704.85 is: 109,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,361.13 : 197,850.33 = 79,704.85 : x
  2. Step 2: Convert to fraction form
    143,361.13/197,850.33 = 79,704.85/x
  3. Step 3: Cross multiply
    143,361.13x = 197,850.33 × 79,704.85
  4. Step 4: Simplify right side
    143,361.13x = 15,769,630,875.10
  5. Step 5: Solve for x
    x = 15,769,630,875.10/143,361.13
  6. Step 6: Final answer
    x = 109,999.35

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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.