Home / 185,257.26-277,864.20-78,657.12

Finding the Fourth Proportional to 185,257.26, 277,864.20 and 78,657.12

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Solution

The fourth proportional to 185,257.26, 277,864.20 and 78,657.12 is: 117,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,257.26 : 277,864.20 = 78,657.12 : x
  2. Step 2: Convert to fraction form
    185,257.26/277,864.20 = 78,657.12/x
  3. Step 3: Cross multiply
    185,257.26x = 277,864.20 × 78,657.12
  4. Step 4: Simplify right side
    185,257.26x = 21,855,997,723.10
  5. Step 5: Solve for x
    x = 21,855,997,723.10/185,257.26
  6. Step 6: Final answer
    x = 117,976.47

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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.