Home / 185,628.23-278,397.70-85,692.47

Finding the Fourth Proportional to 185,628.23, 278,397.70 and 85,692.47

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Solution

The fourth proportional to 185,628.23, 278,397.70 and 85,692.47 is: 128,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,628.23 : 278,397.70 = 85,692.47 : x
  2. Step 2: Convert to fraction form
    185,628.23/278,397.70 = 85,692.47/x
  3. Step 3: Cross multiply
    185,628.23x = 278,397.70 × 85,692.47
  4. Step 4: Simplify right side
    185,628.23x = 23,856,586,003.08
  5. Step 5: Solve for x
    x = 23,856,586,003.08/185,628.23
  6. Step 6: Final answer
    x = 128,518.09

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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.