Home / 143,816.66-198,473.77-80,154.91

Finding the Fourth Proportional to 143,816.66, 198,473.77 and 80,154.91

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Solution

The fourth proportional to 143,816.66, 198,473.77 and 80,154.91 is: 110,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,816.66 : 198,473.77 = 80,154.91 : x
  2. Step 2: Convert to fraction form
    143,816.66/198,473.77 = 80,154.91/x
  3. Step 3: Cross multiply
    143,816.66x = 198,473.77 × 80,154.91
  4. Step 4: Simplify right side
    143,816.66x = 15,908,647,171.71
  5. Step 5: Solve for x
    x = 15,908,647,171.71/143,816.66
  6. Step 6: Final answer
    x = 110,617.55

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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.