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Finding the Fourth Proportional to 179,775.64, 269,698.14 and 68,959

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Solution

The fourth proportional to 179,775.64, 269,698.14 and 68,959 is: 103,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,775.64 : 269,698.14 = 68,959 : x
  2. Step 2: Convert to fraction form
    179,775.64/269,698.14 = 68,959/x
  3. Step 3: Cross multiply
    179,775.64x = 269,698.14 × 68,959
  4. Step 4: Simplify right side
    179,775.64x = 18,598,114,036.26
  5. Step 5: Solve for x
    x = 18,598,114,036.26/179,775.64
  6. Step 6: Final answer
    x = 103,451.80

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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.