Home / 102,185.30-141,027.99-61,897.88

Finding the Fourth Proportional to 102,185.30, 141,027.99 and 61,897.88

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Solution

The fourth proportional to 102,185.30, 141,027.99 and 61,897.88 is: 85,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,185.30 : 141,027.99 = 61,897.88 : x
  2. Step 2: Convert to fraction form
    102,185.30/141,027.99 = 61,897.88/x
  3. Step 3: Cross multiply
    102,185.30x = 141,027.99 × 61,897.88
  4. Step 4: Simplify right side
    102,185.30x = 8,729,333,601.66
  5. Step 5: Solve for x
    x = 8,729,333,601.66/102,185.30
  6. Step 6: Final answer
    x = 85,426.51

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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.