Home / 185,829.66-278,778.09-67,666.86

Finding the Fourth Proportional to 185,829.66, 278,778.09 and 67,666.86

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Solution

The fourth proportional to 185,829.66, 278,778.09 and 67,666.86 is: 101,512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,829.66 : 278,778.09 = 67,666.86 : x
  2. Step 2: Convert to fraction form
    185,829.66/278,778.09 = 67,666.86/x
  3. Step 3: Cross multiply
    185,829.66x = 278,778.09 × 67,666.86
  4. Step 4: Simplify right side
    185,829.66x = 18,864,037,987.10
  5. Step 5: Solve for x
    x = 18,864,037,987.10/185,829.66
  6. Step 6: Final answer
    x = 101,512.52

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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.