Home / 179,531.40-269,347.04-78,338.32

Finding the Fourth Proportional to 179,531.40, 269,347.04 and 78,338.32

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Solution

The fourth proportional to 179,531.40, 269,347.04 and 78,338.32 is: 117,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,531.40 : 269,347.04 = 78,338.32 : x
  2. Step 2: Convert to fraction form
    179,531.40/269,347.04 = 78,338.32/x
  3. Step 3: Cross multiply
    179,531.40x = 269,347.04 × 78,338.32
  4. Step 4: Simplify right side
    179,531.40x = 21,100,194,610.57
  5. Step 5: Solve for x
    x = 21,100,194,610.57/179,531.40
  6. Step 6: Final answer
    x = 117,529.27

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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.