Home / 168,764.78-253,271.75-80,018.62

Finding the Fourth Proportional to 168,764.78, 253,271.75 and 80,018.62

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Solution

The fourth proportional to 168,764.78, 253,271.75 and 80,018.62 is: 120,086.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,764.78 : 253,271.75 = 80,018.62 : x
  2. Step 2: Convert to fraction form
    168,764.78/253,271.75 = 80,018.62/x
  3. Step 3: Cross multiply
    168,764.78x = 253,271.75 × 80,018.62
  4. Step 4: Simplify right side
    168,764.78x = 20,266,454,886.71
  5. Step 5: Solve for x
    x = 20,266,454,886.71/168,764.78
  6. Step 6: Final answer
    x = 120,086.99

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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.