Home / 143,185.24-197,592.78-79,520.86

Finding the Fourth Proportional to 143,185.24, 197,592.78 and 79,520.86

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Solution

The fourth proportional to 143,185.24, 197,592.78 and 79,520.86 is: 109,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,185.24 : 197,592.78 = 79,520.86 : x
  2. Step 2: Convert to fraction form
    143,185.24/197,592.78 = 79,520.86/x
  3. Step 3: Cross multiply
    143,185.24x = 197,592.78 × 79,520.86
  4. Step 4: Simplify right side
    143,185.24x = 15,712,747,795.39
  5. Step 5: Solve for x
    x = 15,712,747,795.39/143,185.24
  6. Step 6: Final answer
    x = 109,737.20

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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.