Home / 121,115.25-181,542.60-115,526.12

Finding the Fourth Proportional to 121,115.25, 181,542.60 and 115,526.12

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Solution

The fourth proportional to 121,115.25, 181,542.60 and 115,526.12 is: 173,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,115.25 : 181,542.60 = 115,526.12 : x
  2. Step 2: Convert to fraction form
    121,115.25/181,542.60 = 115,526.12/x
  3. Step 3: Cross multiply
    121,115.25x = 181,542.60 × 115,526.12
  4. Step 4: Simplify right side
    121,115.25x = 20,972,911,285.00
  5. Step 5: Solve for x
    x = 20,972,911,285.00/121,115.25
  6. Step 6: Final answer
    x = 173,164.91

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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.