Home / 163,121.37-225,092.39-91,487.58

Finding the Fourth Proportional to 163,121.37, 225,092.39 and 91,487.58

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Solution

The fourth proportional to 163,121.37, 225,092.39 and 91,487.58 is: 126,244.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,121.37 : 225,092.39 = 91,487.58 : x
  2. Step 2: Convert to fraction form
    163,121.37/225,092.39 = 91,487.58/x
  3. Step 3: Cross multiply
    163,121.37x = 225,092.39 × 91,487.58
  4. Step 4: Simplify right side
    163,121.37x = 20,593,157,580.08
  5. Step 5: Solve for x
    x = 20,593,157,580.08/163,121.37
  6. Step 6: Final answer
    x = 126,244.39

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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.