Home / 185,383.40-278,072.22-45,140.84

Finding the Fourth Proportional to 185,383.40, 278,072.22 and 45,140.84

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Solution

The fourth proportional to 185,383.40, 278,072.22 and 45,140.84 is: 67,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,383.40 : 278,072.22 = 45,140.84 : x
  2. Step 2: Convert to fraction form
    185,383.40/278,072.22 = 45,140.84/x
  3. Step 3: Cross multiply
    185,383.40x = 278,072.22 × 45,140.84
  4. Step 4: Simplify right side
    185,383.40x = 12,552,413,591.46
  5. Step 5: Solve for x
    x = 12,552,413,591.46/185,383.40
  6. Step 6: Final answer
    x = 67,710.56

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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.