Home / 160,712.20-221,784.84-92,743.28

Finding the Fourth Proportional to 160,712.20, 221,784.84 and 92,743.28

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Solution

The fourth proportional to 160,712.20, 221,784.84 and 92,743.28 is: 127,986.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,712.20 : 221,784.84 = 92,743.28 : x
  2. Step 2: Convert to fraction form
    160,712.20/221,784.84 = 92,743.28/x
  3. Step 3: Cross multiply
    160,712.20x = 221,784.84 × 92,743.28
  4. Step 4: Simplify right side
    160,712.20x = 20,569,053,515.88
  5. Step 5: Solve for x
    x = 20,569,053,515.88/160,712.20
  6. Step 6: Final answer
    x = 127,986.88

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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.