Home / 140,205.04-193,494-79,778.23

Finding the Fourth Proportional to 140,205.04, 193,494 and 79,778.23

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Solution

The fourth proportional to 140,205.04, 193,494 and 79,778.23 is: 110,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,205.04 : 193,494 = 79,778.23 : x
  2. Step 2: Convert to fraction form
    140,205.04/193,494 = 79,778.23/x
  3. Step 3: Cross multiply
    140,205.04x = 193,494 × 79,778.23
  4. Step 4: Simplify right side
    140,205.04x = 15,436,608,835.62
  5. Step 5: Solve for x
    x = 15,436,608,835.62/140,205.04
  6. Step 6: Final answer
    x = 110,100.24

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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.