Home / 140,421.80-193,759.44-79,993.64

Finding the Fourth Proportional to 140,421.80, 193,759.44 and 79,993.64

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Solution

The fourth proportional to 140,421.80, 193,759.44 and 79,993.64 is: 110,378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,421.80 : 193,759.44 = 79,993.64 : x
  2. Step 2: Convert to fraction form
    140,421.80/193,759.44 = 79,993.64/x
  3. Step 3: Cross multiply
    140,421.80x = 193,759.44 × 79,993.64
  4. Step 4: Simplify right side
    140,421.80x = 15,499,522,889.96
  5. Step 5: Solve for x
    x = 15,499,522,889.96/140,421.80
  6. Step 6: Final answer
    x = 110,378.32

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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.