Home / 206,840.16-285,422.64-116,191.20

Finding the Fourth Proportional to 206,840.16, 285,422.64 and 116,191.20

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Solution

The fourth proportional to 206,840.16, 285,422.64 and 116,191.20 is: 160,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,840.16 : 285,422.64 = 116,191.20 : x
  2. Step 2: Convert to fraction form
    206,840.16/285,422.64 = 116,191.20/x
  3. Step 3: Cross multiply
    206,840.16x = 285,422.64 × 116,191.20
  4. Step 4: Simplify right side
    206,840.16x = 33,163,599,048.77
  5. Step 5: Solve for x
    x = 33,163,599,048.77/206,840.16
  6. Step 6: Final answer
    x = 160,334.43

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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.