Home / 140,884.89-194,418.09-77,221.32

Finding the Fourth Proportional to 140,884.89, 194,418.09 and 77,221.32

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Solution

The fourth proportional to 140,884.89, 194,418.09 and 77,221.32 is: 106,563.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,884.89 : 194,418.09 = 77,221.32 : x
  2. Step 2: Convert to fraction form
    140,884.89/194,418.09 = 77,221.32/x
  3. Step 3: Cross multiply
    140,884.89x = 194,418.09 × 77,221.32
  4. Step 4: Simplify right side
    140,884.89x = 15,013,221,541.68
  5. Step 5: Solve for x
    x = 15,013,221,541.68/140,884.89
  6. Step 6: Final answer
    x = 106,563.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.