Home / 221,645.34-332,613.90-81,405.18

Finding the Fourth Proportional to 221,645.34, 332,613.90 and 81,405.18

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Solution

The fourth proportional to 221,645.34, 332,613.90 and 81,405.18 is: 122,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,645.34 : 332,613.90 = 81,405.18 : x
  2. Step 2: Convert to fraction form
    221,645.34/332,613.90 = 81,405.18/x
  3. Step 3: Cross multiply
    221,645.34x = 332,613.90 × 81,405.18
  4. Step 4: Simplify right side
    221,645.34x = 27,076,494,400.00
  5. Step 5: Solve for x
    x = 27,076,494,400.00/221,645.34
  6. Step 6: Final answer
    x = 122,161.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.