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Finding the Fourth Proportional to 163,313.30, 225,383.48 and 90,724.48

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Solution

The fourth proportional to 163,313.30, 225,383.48 and 90,724.48 is: 125,205.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,313.30 : 225,383.48 = 90,724.48 : x
  2. Step 2: Convert to fraction form
    163,313.30/225,383.48 = 90,724.48/x
  3. Step 3: Cross multiply
    163,313.30x = 225,383.48 × 90,724.48
  4. Step 4: Simplify right side
    163,313.30x = 20,447,799,023.59
  5. Step 5: Solve for x
    x = 20,447,799,023.59/163,313.30
  6. Step 6: Final answer
    x = 125,205.96

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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.