Home / 185,785.36-278,673.18-65,840.56

Finding the Fourth Proportional to 185,785.36, 278,673.18 and 65,840.56

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Solution

The fourth proportional to 185,785.36, 278,673.18 and 65,840.56 is: 98,759.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,785.36 : 278,673.18 = 65,840.56 : x
  2. Step 2: Convert to fraction form
    185,785.36/278,673.18 = 65,840.56/x
  3. Step 3: Cross multiply
    185,785.36x = 278,673.18 × 65,840.56
  4. Step 4: Simplify right side
    185,785.36x = 18,347,998,228.18
  5. Step 5: Solve for x
    x = 18,347,998,228.18/185,785.36
  6. Step 6: Final answer
    x = 98,759.12

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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.