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Finding the Fourth Proportional to 163,571.63, 225,732.49 and 99,944.51

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Solution

The fourth proportional to 163,571.63, 225,732.49 and 99,944.51 is: 137,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,571.63 : 225,732.49 = 99,944.51 : x
  2. Step 2: Convert to fraction form
    163,571.63/225,732.49 = 99,944.51/x
  3. Step 3: Cross multiply
    163,571.63x = 225,732.49 × 99,944.51
  4. Step 4: Simplify right side
    163,571.63x = 22,560,721,725.61
  5. Step 5: Solve for x
    x = 22,560,721,725.61/163,571.63
  6. Step 6: Final answer
    x = 137,925.64

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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.