Home / 140,421.44-193,772.40-79,983.20

Finding the Fourth Proportional to 140,421.44, 193,772.40 and 79,983.20

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Solution

The fourth proportional to 140,421.44, 193,772.40 and 79,983.20 is: 110,371.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,421.44 : 193,772.40 = 79,983.20 : x
  2. Step 2: Convert to fraction form
    140,421.44/193,772.40 = 79,983.20/x
  3. Step 3: Cross multiply
    140,421.44x = 193,772.40 × 79,983.20
  4. Step 4: Simplify right side
    140,421.44x = 15,498,536,623.68
  5. Step 5: Solve for x
    x = 15,498,536,623.68/140,421.44
  6. Step 6: Final answer
    x = 110,371.58

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1.5x scale

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.