Home / 140,234.86-193,531.98-76,578.58

Finding the Fourth Proportional to 140,234.86, 193,531.98 and 76,578.58

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Solution

The fourth proportional to 140,234.86, 193,531.98 and 76,578.58 is: 105,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,234.86 : 193,531.98 = 76,578.58 : x
  2. Step 2: Convert to fraction form
    140,234.86/193,531.98 = 76,578.58/x
  3. Step 3: Cross multiply
    140,234.86x = 193,531.98 × 76,578.58
  4. Step 4: Simplify right side
    140,234.86x = 14,820,404,212.99
  5. Step 5: Solve for x
    x = 14,820,404,212.99/140,234.86
  6. Step 6: Final answer
    x = 105,682.74

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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.