Home / 106,366.82-146,802.40-80,831.56

Finding the Fourth Proportional to 106,366.82, 146,802.40 and 80,831.56

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Solution

The fourth proportional to 106,366.82, 146,802.40 and 80,831.56 is: 111,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,366.82 : 146,802.40 = 80,831.56 : x
  2. Step 2: Convert to fraction form
    106,366.82/146,802.40 = 80,831.56/x
  3. Step 3: Cross multiply
    106,366.82x = 146,802.40 × 80,831.56
  4. Step 4: Simplify right side
    106,366.82x = 11,866,267,003.74
  5. Step 5: Solve for x
    x = 11,866,267,003.74/106,366.82
  6. Step 6: Final answer
    x = 111,559.85

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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.