Home / 140,451.17-193,824.51-76,788.82

Finding the Fourth Proportional to 140,451.17, 193,824.51 and 76,788.82

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Solution

The fourth proportional to 140,451.17, 193,824.51 and 76,788.82 is: 105,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,451.17 : 193,824.51 = 76,788.82 : x
  2. Step 2: Convert to fraction form
    140,451.17/193,824.51 = 76,788.82/x
  3. Step 3: Cross multiply
    140,451.17x = 193,824.51 × 76,788.82
  4. Step 4: Simplify right side
    140,451.17x = 14,883,555,409.98
  5. Step 5: Solve for x
    x = 14,883,555,409.98/140,451.17
  6. Step 6: Final answer
    x = 105,969.61

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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.