Home / 140,162.60-193,418.97-76,500.40

Finding the Fourth Proportional to 140,162.60, 193,418.97 and 76,500.40

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Solution

The fourth proportional to 140,162.60, 193,418.97 and 76,500.40 is: 105,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,162.60 : 193,418.97 = 76,500.40 : x
  2. Step 2: Convert to fraction form
    140,162.60/193,418.97 = 76,500.40/x
  3. Step 3: Cross multiply
    140,162.60x = 193,418.97 × 76,500.40
  4. Step 4: Simplify right side
    140,162.60x = 14,796,627,605.49
  5. Step 5: Solve for x
    x = 14,796,627,605.49/140,162.60
  6. Step 6: Final answer
    x = 105,567.59

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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.