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Finding the Fourth Proportional to 139,258.82, 208,922.16 and 44,488.91

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Solution

The fourth proportional to 139,258.82, 208,922.16 and 44,488.91 is: 66,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,258.82 : 208,922.16 = 44,488.91 : x
  2. Step 2: Convert to fraction form
    139,258.82/208,922.16 = 44,488.91/x
  3. Step 3: Cross multiply
    139,258.82x = 208,922.16 × 44,488.91
  4. Step 4: Simplify right side
    139,258.82x = 9,294,719,173.25
  5. Step 5: Solve for x
    x = 9,294,719,173.25/139,258.82
  6. Step 6: Final answer
    x = 66,744.20

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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.