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Finding the Fourth Proportional to 119,881.11, 179,850.88 and 39,918.93

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Solution

The fourth proportional to 119,881.11, 179,850.88 and 39,918.93 is: 59,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,881.11 : 179,850.88 = 39,918.93 : x
  2. Step 2: Convert to fraction form
    119,881.11/179,850.88 = 39,918.93/x
  3. Step 3: Cross multiply
    119,881.11x = 179,850.88 × 39,918.93
  4. Step 4: Simplify right side
    119,881.11x = 7,179,454,064.62
  5. Step 5: Solve for x
    x = 7,179,454,064.62/119,881.11
  6. Step 6: Final answer
    x = 59,888.12

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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.