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Finding the Fourth Proportional to 163,694.09, 225,970.62 and 127,313.21

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Solution

The fourth proportional to 163,694.09, 225,970.62 and 127,313.21 is: 175,748.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,694.09 : 225,970.62 = 127,313.21 : x
  2. Step 2: Convert to fraction form
    163,694.09/225,970.62 = 127,313.21/x
  3. Step 3: Cross multiply
    163,694.09x = 225,970.62 × 127,313.21
  4. Step 4: Simplify right side
    163,694.09x = 28,769,044,997.89
  5. Step 5: Solve for x
    x = 28,769,044,997.89/163,694.09
  6. Step 6: Final answer
    x = 175,748.83

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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.