Home / 140,005.18-193,243.98-79,611.22

Finding the Fourth Proportional to 140,005.18, 193,243.98 and 79,611.22

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Solution

The fourth proportional to 140,005.18, 193,243.98 and 79,611.22 is: 109,884.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,005.18 : 193,243.98 = 79,611.22 : x
  2. Step 2: Convert to fraction form
    140,005.18/193,243.98 = 79,611.22/x
  3. Step 3: Cross multiply
    140,005.18x = 193,243.98 × 79,611.22
  4. Step 4: Simplify right side
    140,005.18x = 15,384,389,005.46
  5. Step 5: Solve for x
    x = 15,384,389,005.46/140,005.18
  6. Step 6: Final answer
    x = 109,884.43

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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.