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Finding the Fourth Proportional to 187,883.25, 259,278.90 and 103,000.92

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Solution

The fourth proportional to 187,883.25, 259,278.90 and 103,000.92 is: 142,141.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,883.25 : 259,278.90 = 103,000.92 : x
  2. Step 2: Convert to fraction form
    187,883.25/259,278.90 = 103,000.92/x
  3. Step 3: Cross multiply
    187,883.25x = 259,278.90 × 103,000.92
  4. Step 4: Simplify right side
    187,883.25x = 26,705,965,236.59
  5. Step 5: Solve for x
    x = 26,705,965,236.59/187,883.25
  6. Step 6: Final answer
    x = 142,141.28

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1.5x scale

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.