Home / 107,655.25-161,310.64-91,810.43

Finding the Fourth Proportional to 107,655.25, 161,310.64 and 91,810.43

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Solution

The fourth proportional to 107,655.25, 161,310.64 and 91,810.43 is: 137,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,655.25 : 161,310.64 = 91,810.43 : x
  2. Step 2: Convert to fraction form
    107,655.25/161,310.64 = 91,810.43/x
  3. Step 3: Cross multiply
    107,655.25x = 161,310.64 × 91,810.43
  4. Step 4: Simplify right side
    107,655.25x = 14,809,999,593.71
  5. Step 5: Solve for x
    x = 14,809,999,593.71/107,655.25
  6. Step 6: Final answer
    x = 137,568.77

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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.