Home / 140,179.20-193,451.88-76,520.40

Finding the Fourth Proportional to 140,179.20, 193,451.88 and 76,520.40

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Solution

The fourth proportional to 140,179.20, 193,451.88 and 76,520.40 is: 105,600.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,179.20 : 193,451.88 = 76,520.40 : x
  2. Step 2: Convert to fraction form
    140,179.20/193,451.88 = 76,520.40/x
  3. Step 3: Cross multiply
    140,179.20x = 193,451.88 × 76,520.40
  4. Step 4: Simplify right side
    140,179.20x = 14,803,015,238.35
  5. Step 5: Solve for x
    x = 14,803,015,238.35/140,179.20
  6. Step 6: Final answer
    x = 105,600.65

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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.