Home / 206,563.20-285,012.96-135,048.24

Finding the Fourth Proportional to 206,563.20, 285,012.96 and 135,048.24

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Solution

The fourth proportional to 206,563.20, 285,012.96 and 135,048.24 is: 186,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,563.20 : 285,012.96 = 135,048.24 : x
  2. Step 2: Convert to fraction form
    206,563.20/285,012.96 = 135,048.24/x
  3. Step 3: Cross multiply
    206,563.20x = 285,012.96 × 135,048.24
  4. Step 4: Simplify right side
    206,563.20x = 38,490,498,625.19
  5. Step 5: Solve for x
    x = 38,490,498,625.19/206,563.20
  6. Step 6: Final answer
    x = 186,337.64

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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.