Home / 140,050.56-193,286.10-79,630.25

Finding the Fourth Proportional to 140,050.56, 193,286.10 and 79,630.25

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Solution

The fourth proportional to 140,050.56, 193,286.10 and 79,630.25 is: 109,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,050.56 : 193,286.10 = 79,630.25 : x
  2. Step 2: Convert to fraction form
    140,050.56/193,286.10 = 79,630.25/x
  3. Step 3: Cross multiply
    140,050.56x = 193,286.10 × 79,630.25
  4. Step 4: Simplify right side
    140,050.56x = 15,391,420,464.53
  5. Step 5: Solve for x
    x = 15,391,420,464.53/140,050.56
  6. Step 6: Final answer
    x = 109,899.03

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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.