Home / 140,025.12-193,246.14-79,614.72

Finding the Fourth Proportional to 140,025.12, 193,246.14 and 79,614.72

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Solution

The fourth proportional to 140,025.12, 193,246.14 and 79,614.72 is: 109,874.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,025.12 : 193,246.14 = 79,614.72 : x
  2. Step 2: Convert to fraction form
    140,025.12/193,246.14 = 79,614.72/x
  3. Step 3: Cross multiply
    140,025.12x = 193,246.14 × 79,614.72
  4. Step 4: Simplify right side
    140,025.12x = 15,385,237,327.18
  5. Step 5: Solve for x
    x = 15,385,237,327.18/140,025.12
  6. Step 6: Final answer
    x = 109,874.84

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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.