Home / 107,939.38-161,811.06-37,780.42

Finding the Fourth Proportional to 107,939.38, 161,811.06 and 37,780.42

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Solution

The fourth proportional to 107,939.38, 161,811.06 and 37,780.42 is: 56,636.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,939.38 : 161,811.06 = 37,780.42 : x
  2. Step 2: Convert to fraction form
    107,939.38/161,811.06 = 37,780.42/x
  3. Step 3: Cross multiply
    107,939.38x = 161,811.06 × 37,780.42
  4. Step 4: Simplify right side
    107,939.38x = 6,113,289,807.45
  5. Step 5: Solve for x
    x = 6,113,289,807.45/107,939.38
  6. Step 6: Final answer
    x = 56,636.33

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1.5x scale

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.