Home / 185,551.40-278,288.82-90,684.20

Finding the Fourth Proportional to 185,551.40, 278,288.82 and 90,684.20

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Solution

The fourth proportional to 185,551.40, 278,288.82 and 90,684.20 is: 136,007.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,551.40 : 278,288.82 = 90,684.20 : x
  2. Step 2: Convert to fraction form
    185,551.40/278,288.82 = 90,684.20/x
  3. Step 3: Cross multiply
    185,551.40x = 278,288.82 × 90,684.20
  4. Step 4: Simplify right side
    185,551.40x = 25,236,399,706.37
  5. Step 5: Solve for x
    x = 25,236,399,706.37/185,551.40
  6. Step 6: Final answer
    x = 136,007.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.