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Finding the Fourth Proportional to 121,101.51, 181,652.28 and 36,866.52

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Solution

The fourth proportional to 121,101.51, 181,652.28 and 36,866.52 is: 55,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,101.51 : 181,652.28 = 36,866.52 : x
  2. Step 2: Convert to fraction form
    121,101.51/181,652.28 = 36,866.52/x
  3. Step 3: Cross multiply
    121,101.51x = 181,652.28 × 36,866.52
  4. Step 4: Simplify right side
    121,101.51x = 6,696,887,413.67
  5. Step 5: Solve for x
    x = 6,696,887,413.67/121,101.51
  6. Step 6: Final answer
    x = 55,299.78

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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.