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Finding the Fourth Proportional to 138,676.46, 208,772.24 and 94,582.89

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Solution

The fourth proportional to 138,676.46, 208,772.24 and 94,582.89 is: 142,391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,676.46 : 208,772.24 = 94,582.89 : x
  2. Step 2: Convert to fraction form
    138,676.46/208,772.24 = 94,582.89/x
  3. Step 3: Cross multiply
    138,676.46x = 208,772.24 × 94,582.89
  4. Step 4: Simplify right side
    138,676.46x = 19,746,281,338.06
  5. Step 5: Solve for x
    x = 19,746,281,338.06/138,676.46
  6. Step 6: Final answer
    x = 142,391.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.