Home / 121,435.21-181,996.71-58,160.44

Finding the Fourth Proportional to 121,435.21, 181,996.71 and 58,160.44

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Solution

The fourth proportional to 121,435.21, 181,996.71 and 58,160.44 is: 87,165.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,435.21 : 181,996.71 = 58,160.44 : x
  2. Step 2: Convert to fraction form
    121,435.21/181,996.71 = 58,160.44/x
  3. Step 3: Cross multiply
    121,435.21x = 181,996.71 × 58,160.44
  4. Step 4: Simplify right side
    121,435.21x = 10,585,008,732.15
  5. Step 5: Solve for x
    x = 10,585,008,732.15/121,435.21
  6. Step 6: Final answer
    x = 87,165.89

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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.