Home / 143,831.24-198,488.03-80,173.07

Finding the Fourth Proportional to 143,831.24, 198,488.03 and 80,173.07

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Solution

The fourth proportional to 143,831.24, 198,488.03 and 80,173.07 is: 110,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,831.24 : 198,488.03 = 80,173.07 : x
  2. Step 2: Convert to fraction form
    143,831.24/198,488.03 = 80,173.07/x
  3. Step 3: Cross multiply
    143,831.24x = 198,488.03 × 80,173.07
  4. Step 4: Simplify right side
    143,831.24x = 15,913,393,330.05
  5. Step 5: Solve for x
    x = 15,913,393,330.05/143,831.24
  6. Step 6: Final answer
    x = 110,639.34

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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.