Home / 107,958.20-161,718.60-61,156.40

Finding the Fourth Proportional to 107,958.20, 161,718.60 and 61,156.40

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Solution

The fourth proportional to 107,958.20, 161,718.60 and 61,156.40 is: 91,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,958.20 : 161,718.60 = 61,156.40 : x
  2. Step 2: Convert to fraction form
    107,958.20/161,718.60 = 61,156.40/x
  3. Step 3: Cross multiply
    107,958.20x = 161,718.60 × 61,156.40
  4. Step 4: Simplify right side
    107,958.20x = 9,890,127,389.04
  5. Step 5: Solve for x
    x = 9,890,127,389.04/107,958.20
  6. Step 6: Final answer
    x = 91,610.71

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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.