Home / 160,704.22-221,756.91-89,078.15

Finding the Fourth Proportional to 160,704.22, 221,756.91 and 89,078.15

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Solution

The fourth proportional to 160,704.22, 221,756.91 and 89,078.15 is: 122,919.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,704.22 : 221,756.91 = 89,078.15 : x
  2. Step 2: Convert to fraction form
    160,704.22/221,756.91 = 89,078.15/x
  3. Step 3: Cross multiply
    160,704.22x = 221,756.91 × 89,078.15
  4. Step 4: Simplify right side
    160,704.22x = 19,753,695,017.08
  5. Step 5: Solve for x
    x = 19,753,695,017.08/160,704.22
  6. Step 6: Final answer
    x = 122,919.58

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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.