Home / 107,939.88-161,811.81-37,780.92

Finding the Fourth Proportional to 107,939.88, 161,811.81 and 37,780.92

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Solution

The fourth proportional to 107,939.88, 161,811.81 and 37,780.92 is: 56,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,939.88 : 161,811.81 = 37,780.92 : x
  2. Step 2: Convert to fraction form
    107,939.88/161,811.81 = 37,780.92/x
  3. Step 3: Cross multiply
    107,939.88x = 161,811.81 × 37,780.92
  4. Step 4: Simplify right side
    107,939.88x = 6,113,399,048.67
  5. Step 5: Solve for x
    x = 6,113,399,048.67/107,939.88
  6. Step 6: Final answer
    x = 56,637.07

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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.