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Finding the Fourth Proportional to 187,681.92, 259,005.26 and 107,107.84

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Solution

The fourth proportional to 187,681.92, 259,005.26 and 107,107.84 is: 147,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,681.92 : 259,005.26 = 107,107.84 : x
  2. Step 2: Convert to fraction form
    187,681.92/259,005.26 = 107,107.84/x
  3. Step 3: Cross multiply
    187,681.92x = 259,005.26 × 107,107.84
  4. Step 4: Simplify right side
    187,681.92x = 27,741,493,947.24
  5. Step 5: Solve for x
    x = 27,741,493,947.24/187,681.92
  6. Step 6: Final answer
    x = 147,811.22

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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.