Home / 135,267.19-186,728.51-80,838.56

Finding the Fourth Proportional to 135,267.19, 186,728.51 and 80,838.56

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Solution

The fourth proportional to 135,267.19, 186,728.51 and 80,838.56 is: 111,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,267.19 : 186,728.51 = 80,838.56 : x
  2. Step 2: Convert to fraction form
    135,267.19/186,728.51 = 80,838.56/x
  3. Step 3: Cross multiply
    135,267.19x = 186,728.51 × 80,838.56
  4. Step 4: Simplify right side
    135,267.19x = 15,094,863,859.35
  5. Step 5: Solve for x
    x = 15,094,863,859.35/135,267.19
  6. Step 6: Final answer
    x = 111,592.94

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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.