Home / 163,131.52-225,101.28-91,501.60

Finding the Fourth Proportional to 163,131.52, 225,101.28 and 91,501.60

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Solution

The fourth proportional to 163,131.52, 225,101.28 and 91,501.60 is: 126,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,131.52 : 225,101.28 = 91,501.60 : x
  2. Step 2: Convert to fraction form
    163,131.52/225,101.28 = 91,501.60/x
  3. Step 3: Cross multiply
    163,131.52x = 225,101.28 × 91,501.60
  4. Step 4: Simplify right side
    163,131.52x = 20,597,127,282.05
  5. Step 5: Solve for x
    x = 20,597,127,282.05/163,131.52
  6. Step 6: Final answer
    x = 126,260.87

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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.