Home / 163,485.30-225,615.40-91,863.86

Finding the Fourth Proportional to 163,485.30, 225,615.40 and 91,863.86

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Solution

The fourth proportional to 163,485.30, 225,615.40 and 91,863.86 is: 126,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,485.30 : 225,615.40 = 91,863.86 : x
  2. Step 2: Convert to fraction form
    163,485.30/225,615.40 = 91,863.86/x
  3. Step 3: Cross multiply
    163,485.30x = 225,615.40 × 91,863.86
  4. Step 4: Simplify right side
    163,485.30x = 20,725,901,519.44
  5. Step 5: Solve for x
    x = 20,725,901,519.44/163,485.30
  6. Step 6: Final answer
    x = 126,775.32

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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.