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Finding the Fourth Proportional to 121,238.38, 181,857.60 and 36,999

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Solution

The fourth proportional to 121,238.38, 181,857.60 and 36,999 is: 55,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,238.38 : 181,857.60 = 36,999 : x
  2. Step 2: Convert to fraction form
    121,238.38/181,857.60 = 36,999/x
  3. Step 3: Cross multiply
    121,238.38x = 181,857.60 × 36,999
  4. Step 4: Simplify right side
    121,238.38x = 6,728,549,342.40
  5. Step 5: Solve for x
    x = 6,728,549,342.40/121,238.38
  6. Step 6: Final answer
    x = 55,498.51

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1.5x scale

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.