Home / 140,189.80-193,466.46-79,758.94

Finding the Fourth Proportional to 140,189.80, 193,466.46 and 79,758.94

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Solution

The fourth proportional to 140,189.80, 193,466.46 and 79,758.94 is: 110,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.80 : 193,466.46 = 79,758.94 : x
  2. Step 2: Convert to fraction form
    140,189.80/193,466.46 = 79,758.94/x
  3. Step 3: Cross multiply
    140,189.80x = 193,466.46 × 79,758.94
  4. Step 4: Simplify right side
    140,189.80x = 15,430,679,775.15
  5. Step 5: Solve for x
    x = 15,430,679,775.15/140,189.80
  6. Step 6: Final answer
    x = 110,069.92

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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.