Home / 140,009.18-193,249.50-79,615.22

Finding the Fourth Proportional to 140,009.18, 193,249.50 and 79,615.22

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Solution

The fourth proportional to 140,009.18, 193,249.50 and 79,615.22 is: 109,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,009.18 : 193,249.50 = 79,615.22 : x
  2. Step 2: Convert to fraction form
    140,009.18/193,249.50 = 79,615.22/x
  3. Step 3: Cross multiply
    140,009.18x = 193,249.50 × 79,615.22
  4. Step 4: Simplify right side
    140,009.18x = 15,385,601,457.39
  5. Step 5: Solve for x
    x = 15,385,601,457.39/140,009.18
  6. Step 6: Final answer
    x = 109,889.95

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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.