Home / 145,716.66-201,099.38-81,191.25

Finding the Fourth Proportional to 145,716.66, 201,099.38 and 81,191.25

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Solution

The fourth proportional to 145,716.66, 201,099.38 and 81,191.25 is: 112,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,716.66 : 201,099.38 = 81,191.25 : x
  2. Step 2: Convert to fraction form
    145,716.66/201,099.38 = 81,191.25/x
  3. Step 3: Cross multiply
    145,716.66x = 201,099.38 × 81,191.25
  4. Step 4: Simplify right side
    145,716.66x = 16,327,509,630.47
  5. Step 5: Solve for x
    x = 16,327,509,630.47/145,716.66
  6. Step 6: Final answer
    x = 112,049.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.