Home / 185,689.56-278,262.18-115,355.64

Finding the Fourth Proportional to 185,689.56, 278,262.18 and 115,355.64

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Solution

The fourth proportional to 185,689.56, 278,262.18 and 115,355.64 is: 172,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,689.56 : 278,262.18 = 115,355.64 : x
  2. Step 2: Convert to fraction form
    185,689.56/278,262.18 = 115,355.64/x
  3. Step 3: Cross multiply
    185,689.56x = 278,262.18 × 115,355.64
  4. Step 4: Simplify right side
    185,689.56x = 32,099,111,861.70
  5. Step 5: Solve for x
    x = 32,099,111,861.70/185,689.56
  6. Step 6: Final answer
    x = 172,864.39

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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.