Home / 160,731.20-221,763.04-92,742.72

Finding the Fourth Proportional to 160,731.20, 221,763.04 and 92,742.72

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Solution

The fourth proportional to 160,731.20, 221,763.04 and 92,742.72 is: 127,958.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,731.20 : 221,763.04 = 92,742.72 : x
  2. Step 2: Convert to fraction form
    160,731.20/221,763.04 = 92,742.72/x
  3. Step 3: Cross multiply
    160,731.20x = 221,763.04 × 92,742.72
  4. Step 4: Simplify right side
    160,731.20x = 20,566,907,525.07
  5. Step 5: Solve for x
    x = 20,566,907,525.07/160,731.20
  6. Step 6: Final answer
    x = 127,958.40

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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.