Home / 213,612.04-320,439.96-80,604.22

Finding the Fourth Proportional to 213,612.04, 320,439.96 and 80,604.22

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Solution

The fourth proportional to 213,612.04, 320,439.96 and 80,604.22 is: 120,914.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,612.04 : 320,439.96 = 80,604.22 : x
  2. Step 2: Convert to fraction form
    213,612.04/320,439.96 = 80,604.22/x
  3. Step 3: Cross multiply
    213,612.04x = 320,439.96 × 80,604.22
  4. Step 4: Simplify right side
    213,612.04x = 25,828,813,032.63
  5. Step 5: Solve for x
    x = 25,828,813,032.63/213,612.04
  6. Step 6: Final answer
    x = 120,914.59

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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.