Home / 107,811.78-161,710.09-40,330.94

Finding the Fourth Proportional to 107,811.78, 161,710.09 and 40,330.94

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Solution

The fourth proportional to 107,811.78, 161,710.09 and 40,330.94 is: 60,493.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.78 : 161,710.09 = 40,330.94 : x
  2. Step 2: Convert to fraction form
    107,811.78/161,710.09 = 40,330.94/x
  3. Step 3: Cross multiply
    107,811.78x = 161,710.09 × 40,330.94
  4. Step 4: Simplify right side
    107,811.78x = 6,521,919,937.18
  5. Step 5: Solve for x
    x = 6,521,919,937.18/107,811.78
  6. Step 6: Final answer
    x = 60,493.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.