Home / 143,998.16-198,717.50-80,334.59

Finding the Fourth Proportional to 143,998.16, 198,717.50 and 80,334.59

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Solution

The fourth proportional to 143,998.16, 198,717.50 and 80,334.59 is: 110,861.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,998.16 : 198,717.50 = 80,334.59 : x
  2. Step 2: Convert to fraction form
    143,998.16/198,717.50 = 80,334.59/x
  3. Step 3: Cross multiply
    143,998.16x = 198,717.50 × 80,334.59
  4. Step 4: Simplify right side
    143,998.16x = 15,963,888,095.57
  5. Step 5: Solve for x
    x = 15,963,888,095.57/143,998.16
  6. Step 6: Final answer
    x = 110,861.75

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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.