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Finding the Fourth Proportional to 144,754.73, 199,713.67 and 87,372.25

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Solution

The fourth proportional to 144,754.73, 199,713.67 and 87,372.25 is: 120,544.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,754.73 : 199,713.67 = 87,372.25 : x
  2. Step 2: Convert to fraction form
    144,754.73/199,713.67 = 87,372.25/x
  3. Step 3: Cross multiply
    144,754.73x = 199,713.67 × 87,372.25
  4. Step 4: Simplify right side
    144,754.73x = 17,449,432,703.66
  5. Step 5: Solve for x
    x = 17,449,432,703.66/144,754.73
  6. Step 6: Final answer
    x = 120,544.82

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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.