Home / 221,101.46-305,121.03-125,613.39

Finding the Fourth Proportional to 221,101.46, 305,121.03 and 125,613.39

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Solution

The fourth proportional to 221,101.46, 305,121.03 and 125,613.39 is: 173,347.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,101.46 : 305,121.03 = 125,613.39 : x
  2. Step 2: Convert to fraction form
    221,101.46/305,121.03 = 125,613.39/x
  3. Step 3: Cross multiply
    221,101.46x = 305,121.03 × 125,613.39
  4. Step 4: Simplify right side
    221,101.46x = 38,327,287,611.75
  5. Step 5: Solve for x
    x = 38,327,287,611.75/221,101.46
  6. Step 6: Final answer
    x = 173,347.06

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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.