Home / 143,847.55-198,512.24-80,178.49

Finding the Fourth Proportional to 143,847.55, 198,512.24 and 80,178.49

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Solution

The fourth proportional to 143,847.55, 198,512.24 and 80,178.49 is: 110,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,847.55 : 198,512.24 = 80,178.49 : x
  2. Step 2: Convert to fraction form
    143,847.55/198,512.24 = 80,178.49/x
  3. Step 3: Cross multiply
    143,847.55x = 198,512.24 × 80,178.49
  4. Step 4: Simplify right side
    143,847.55x = 15,916,411,248.83
  5. Step 5: Solve for x
    x = 15,916,411,248.83/143,847.55
  6. Step 6: Final answer
    x = 110,647.77

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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.