Home / 107,439.59-161,103.70-56,866.03

Finding the Fourth Proportional to 107,439.59, 161,103.70 and 56,866.03

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Solution

The fourth proportional to 107,439.59, 161,103.70 and 56,866.03 is: 85,269.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,439.59 : 161,103.70 = 56,866.03 : x
  2. Step 2: Convert to fraction form
    107,439.59/161,103.70 = 56,866.03/x
  3. Step 3: Cross multiply
    107,439.59x = 161,103.70 × 56,866.03
  4. Step 4: Simplify right side
    107,439.59x = 9,161,327,837.31
  5. Step 5: Solve for x
    x = 9,161,327,837.31/107,439.59
  6. Step 6: Final answer
    x = 85,269.57

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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.