Home / 185,649.30-278,099.38-85,670.58

Finding the Fourth Proportional to 185,649.30, 278,099.38 and 85,670.58

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Solution

The fourth proportional to 185,649.30, 278,099.38 and 85,670.58 is: 128,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,649.30 : 278,099.38 = 85,670.58 : x
  2. Step 2: Convert to fraction form
    185,649.30/278,099.38 = 85,670.58/x
  3. Step 3: Cross multiply
    185,649.30x = 278,099.38 × 85,670.58
  4. Step 4: Simplify right side
    185,649.30x = 23,824,935,182.24
  5. Step 5: Solve for x
    x = 23,824,935,182.24/185,649.30
  6. Step 6: Final answer
    x = 128,333.02

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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.