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Finding the Fourth Proportional to 163,754.92, 225,978.69 and 91,157.32

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Solution

The fourth proportional to 163,754.92, 225,978.69 and 91,157.32 is: 125,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,754.92 : 225,978.69 = 91,157.32 : x
  2. Step 2: Convert to fraction form
    163,754.92/225,978.69 = 91,157.32/x
  3. Step 3: Cross multiply
    163,754.92x = 225,978.69 × 91,157.32
  4. Step 4: Simplify right side
    163,754.92x = 20,599,611,757.51
  5. Step 5: Solve for x
    x = 20,599,611,757.51/163,754.92
  6. Step 6: Final answer
    x = 125,795.38

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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.