Home / 140,345.06-193,671.88-76,682.77

Finding the Fourth Proportional to 140,345.06, 193,671.88 and 76,682.77

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Solution

The fourth proportional to 140,345.06, 193,671.88 and 76,682.77 is: 105,819.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,345.06 : 193,671.88 = 76,682.77 : x
  2. Step 2: Convert to fraction form
    140,345.06/193,671.88 = 76,682.77/x
  3. Step 3: Cross multiply
    140,345.06x = 193,671.88 × 76,682.77
  4. Step 4: Simplify right side
    140,345.06x = 14,851,295,553.62
  5. Step 5: Solve for x
    x = 14,851,295,553.62/140,345.06
  6. Step 6: Final answer
    x = 105,819.87

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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.