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Finding the Fourth Proportional to 121,095, 181,671.66 and 37,989

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Solution

The fourth proportional to 121,095, 181,671.66 and 37,989 is: 56,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,095 : 181,671.66 = 37,989 : x
  2. Step 2: Convert to fraction form
    121,095/181,671.66 = 37,989/x
  3. Step 3: Cross multiply
    121,095x = 181,671.66 × 37,989
  4. Step 4: Simplify right side
    121,095x = 6,901,524,691.74
  5. Step 5: Solve for x
    x = 6,901,524,691.74/121,095
  6. Step 6: Final answer
    x = 56,992.65

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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.