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Finding the Fourth Proportional to 163,008, 224,947.80 and 91,394.28

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Solution

The fourth proportional to 163,008, 224,947.80 and 91,394.28 is: 126,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,008 : 224,947.80 = 91,394.28 : x
  2. Step 2: Convert to fraction form
    163,008/224,947.80 = 91,394.28/x
  3. Step 3: Cross multiply
    163,008x = 224,947.80 × 91,394.28
  4. Step 4: Simplify right side
    163,008x = 20,558,942,218.58
  5. Step 5: Solve for x
    x = 20,558,942,218.58/163,008
  6. Step 6: Final answer
    x = 126,122.29

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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.