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Finding the Fourth Proportional to 102,775.78, 141,853.44 and 62,481

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Solution

The fourth proportional to 102,775.78, 141,853.44 and 62,481 is: 86,237.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,775.78 : 141,853.44 = 62,481 : x
  2. Step 2: Convert to fraction form
    102,775.78/141,853.44 = 62,481/x
  3. Step 3: Cross multiply
    102,775.78x = 141,853.44 × 62,481
  4. Step 4: Simplify right side
    102,775.78x = 8,863,144,784.64
  5. Step 5: Solve for x
    x = 8,863,144,784.64/102,775.78
  6. Step 6: Final answer
    x = 86,237.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.