Home / 103,177.84-142,375.52-57,857.73

Finding the Fourth Proportional to 103,177.84, 142,375.52 and 57,857.73

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Solution

The fourth proportional to 103,177.84, 142,375.52 and 57,857.73 is: 79,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,177.84 : 142,375.52 = 57,857.73 : x
  2. Step 2: Convert to fraction form
    103,177.84/142,375.52 = 57,857.73/x
  3. Step 3: Cross multiply
    103,177.84x = 142,375.52 × 57,857.73
  4. Step 4: Simplify right side
    103,177.84x = 8,237,524,394.77
  5. Step 5: Solve for x
    x = 8,237,524,394.77/103,177.84
  6. Step 6: Final answer
    x = 79,838.12

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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.