Home / 140,723.86-194,196.58-76,192.57

Finding the Fourth Proportional to 140,723.86, 194,196.58 and 76,192.57

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Solution

The fourth proportional to 140,723.86, 194,196.58 and 76,192.57 is: 105,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,723.86 : 194,196.58 = 76,192.57 : x
  2. Step 2: Convert to fraction form
    140,723.86/194,196.58 = 76,192.57/x
  3. Step 3: Cross multiply
    140,723.86x = 194,196.58 × 76,192.57
  4. Step 4: Simplify right side
    140,723.86x = 14,796,336,515.41
  5. Step 5: Solve for x
    x = 14,796,336,515.41/140,723.86
  6. Step 6: Final answer
    x = 105,144.48

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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.