Home / 143,981.84-198,700.35-80,331.94

Finding the Fourth Proportional to 143,981.84, 198,700.35 and 80,331.94

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Solution

The fourth proportional to 143,981.84, 198,700.35 and 80,331.94 is: 110,861.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,981.84 : 198,700.35 = 80,331.94 : x
  2. Step 2: Convert to fraction form
    143,981.84/198,700.35 = 80,331.94/x
  3. Step 3: Cross multiply
    143,981.84x = 198,700.35 × 80,331.94
  4. Step 4: Simplify right side
    143,981.84x = 15,961,984,594.18
  5. Step 5: Solve for x
    x = 15,961,984,594.18/143,981.84
  6. Step 6: Final answer
    x = 110,861.10

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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.