Home / 143,924.79-198,615.83-80,262.66

Finding the Fourth Proportional to 143,924.79, 198,615.83 and 80,262.66

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Solution

The fourth proportional to 143,924.79, 198,615.83 and 80,262.66 is: 110,762.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,924.79 : 198,615.83 = 80,262.66 : x
  2. Step 2: Convert to fraction form
    143,924.79/198,615.83 = 80,262.66/x
  3. Step 3: Cross multiply
    143,924.79x = 198,615.83 × 80,262.66
  4. Step 4: Simplify right side
    143,924.79x = 15,941,434,432.59
  5. Step 5: Solve for x
    x = 15,941,434,432.59/143,924.79
  6. Step 6: Final answer
    x = 110,762.26

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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.