Home / 143,828.50-198,484.24-80,170.32

Finding the Fourth Proportional to 143,828.50, 198,484.24 and 80,170.32

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Solution

The fourth proportional to 143,828.50, 198,484.24 and 80,170.32 is: 110,635.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,828.50 : 198,484.24 = 80,170.32 : x
  2. Step 2: Convert to fraction form
    143,828.50/198,484.24 = 80,170.32/x
  3. Step 3: Cross multiply
    143,828.50x = 198,484.24 × 80,170.32
  4. Step 4: Simplify right side
    143,828.50x = 15,912,545,035.76
  5. Step 5: Solve for x
    x = 15,912,545,035.76/143,828.50
  6. Step 6: Final answer
    x = 110,635.55

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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.