Home / 185,664.83-278,557.11-85,890.38

Finding the Fourth Proportional to 185,664.83, 278,557.11 and 85,890.38

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Solution

The fourth proportional to 185,664.83, 278,557.11 and 85,890.38 is: 128,863.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,664.83 : 278,557.11 = 85,890.38 : x
  2. Step 2: Convert to fraction form
    185,664.83/278,557.11 = 85,890.38/x
  3. Step 3: Cross multiply
    185,664.83x = 278,557.11 × 85,890.38
  4. Step 4: Simplify right side
    185,664.83x = 23,925,374,636.82
  5. Step 5: Solve for x
    x = 23,925,374,636.82/185,664.83
  6. Step 6: Final answer
    x = 128,863.26

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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.