Home / 206,938.24-285,302.40-135,193.60

Finding the Fourth Proportional to 206,938.24, 285,302.40 and 135,193.60

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Solution

The fourth proportional to 206,938.24, 285,302.40 and 135,193.60 is: 186,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,938.24 : 285,302.40 = 135,193.60 : x
  2. Step 2: Convert to fraction form
    206,938.24/285,302.40 = 135,193.60/x
  3. Step 3: Cross multiply
    206,938.24x = 285,302.40 × 135,193.60
  4. Step 4: Simplify right side
    206,938.24x = 38,571,058,544.64
  5. Step 5: Solve for x
    x = 38,571,058,544.64/206,938.24
  6. Step 6: Final answer
    x = 186,389.23

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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.