Home / 140,193.16-193,449.54-79,771.48

Finding the Fourth Proportional to 140,193.16, 193,449.54 and 79,771.48

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Solution

The fourth proportional to 140,193.16, 193,449.54 and 79,771.48 is: 110,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,193.16 : 193,449.54 = 79,771.48 : x
  2. Step 2: Convert to fraction form
    140,193.16/193,449.54 = 79,771.48/x
  3. Step 3: Cross multiply
    140,193.16x = 193,449.54 × 79,771.48
  4. Step 4: Simplify right side
    140,193.16x = 15,431,756,111.12
  5. Step 5: Solve for x
    x = 15,431,756,111.12/140,193.16
  6. Step 6: Final answer
    x = 110,074.96

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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.