Home / 185,930.16-278,928.72-67,767.36

Finding the Fourth Proportional to 185,930.16, 278,928.72 and 67,767.36

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Solution

The fourth proportional to 185,930.16, 278,928.72 and 67,767.36 is: 101,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,930.16 : 278,928.72 = 67,767.36 : x
  2. Step 2: Convert to fraction form
    185,930.16/278,928.72 = 67,767.36/x
  3. Step 3: Cross multiply
    185,930.16x = 278,928.72 × 67,767.36
  4. Step 4: Simplify right side
    185,930.16x = 18,902,262,982.58
  5. Step 5: Solve for x
    x = 18,902,262,982.58/185,930.16
  6. Step 6: Final answer
    x = 101,663.24

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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.