Home / 107,421.18-161,131.83-40,845.93

Finding the Fourth Proportional to 107,421.18, 161,131.83 and 40,845.93

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Solution

The fourth proportional to 107,421.18, 161,131.83 and 40,845.93 is: 61,268.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,421.18 : 161,131.83 = 40,845.93 : x
  2. Step 2: Convert to fraction form
    107,421.18/161,131.83 = 40,845.93/x
  3. Step 3: Cross multiply
    107,421.18x = 161,131.83 × 40,845.93
  4. Step 4: Simplify right side
    107,421.18x = 6,581,579,448.95
  5. Step 5: Solve for x
    x = 6,581,579,448.95/107,421.18
  6. Step 6: Final answer
    x = 61,268.92

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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.