Home / 144,003.72-198,724.32-80,341.36

Finding the Fourth Proportional to 144,003.72, 198,724.32 and 80,341.36

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Solution

The fourth proportional to 144,003.72, 198,724.32 and 80,341.36 is: 110,870.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,003.72 : 198,724.32 = 80,341.36 : x
  2. Step 2: Convert to fraction form
    144,003.72/198,724.32 = 80,341.36/x
  3. Step 3: Cross multiply
    144,003.72x = 198,724.32 × 80,341.36
  4. Step 4: Simplify right side
    144,003.72x = 15,965,782,133.88
  5. Step 5: Solve for x
    x = 15,965,782,133.88/144,003.72
  6. Step 6: Final answer
    x = 110,870.62

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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.