Home / 95,767.72-143,858.94-78,280.36

Finding the Fourth Proportional to 95,767.72, 143,858.94 and 78,280.36

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Solution

The fourth proportional to 95,767.72, 143,858.94 and 78,280.36 is: 117,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,767.72 : 143,858.94 = 78,280.36 : x
  2. Step 2: Convert to fraction form
    95,767.72/143,858.94 = 78,280.36/x
  3. Step 3: Cross multiply
    95,767.72x = 143,858.94 × 78,280.36
  4. Step 4: Simplify right side
    95,767.72x = 11,261,329,612.42
  5. Step 5: Solve for x
    x = 11,261,329,612.42/95,767.72
  6. Step 6: Final answer
    x = 117,590.04

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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.