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Finding the Fourth Proportional to 163,471.47, 225,590.82 and 91,851.45

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Solution

The fourth proportional to 163,471.47, 225,590.82 and 91,851.45 is: 126,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,471.47 : 225,590.82 = 91,851.45 : x
  2. Step 2: Convert to fraction form
    163,471.47/225,590.82 = 91,851.45/x
  3. Step 3: Cross multiply
    163,471.47x = 225,590.82 × 91,851.45
  4. Step 4: Simplify right side
    163,471.47x = 20,720,843,923.69
  5. Step 5: Solve for x
    x = 20,720,843,923.69/163,471.47
  6. Step 6: Final answer
    x = 126,755.11

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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.