Home / 163,213.80-225,229.99-90,615.12

Finding the Fourth Proportional to 163,213.80, 225,229.99 and 90,615.12

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Solution

The fourth proportional to 163,213.80, 225,229.99 and 90,615.12 is: 125,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,213.80 : 225,229.99 = 90,615.12 : x
  2. Step 2: Convert to fraction form
    163,213.80/225,229.99 = 90,615.12/x
  3. Step 3: Cross multiply
    163,213.80x = 225,229.99 × 90,615.12
  4. Step 4: Simplify right side
    163,213.80x = 20,409,243,191.98
  5. Step 5: Solve for x
    x = 20,409,243,191.98/163,213.80
  6. Step 6: Final answer
    x = 125,046.06

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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.