Home / 179,921.80-269,915.10-74,751.40

Finding the Fourth Proportional to 179,921.80, 269,915.10 and 74,751.40

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Solution

The fourth proportional to 179,921.80, 269,915.10 and 74,751.40 is: 112,140.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,921.80 : 269,915.10 = 74,751.40 : x
  2. Step 2: Convert to fraction form
    179,921.80/269,915.10 = 74,751.40/x
  3. Step 3: Cross multiply
    179,921.80x = 269,915.10 × 74,751.40
  4. Step 4: Simplify right side
    179,921.80x = 20,176,531,606.14
  5. Step 5: Solve for x
    x = 20,176,531,606.14/179,921.80
  6. Step 6: Final answer
    x = 112,140.56

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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.