Home / 107,320.80-160,981.20-67,922.40

Finding the Fourth Proportional to 107,320.80, 160,981.20 and 67,922.40

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Solution

The fourth proportional to 107,320.80, 160,981.20 and 67,922.40 is: 101,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,320.80 : 160,981.20 = 67,922.40 : x
  2. Step 2: Convert to fraction form
    107,320.80/160,981.20 = 67,922.40/x
  3. Step 3: Cross multiply
    107,320.80x = 160,981.20 × 67,922.40
  4. Step 4: Simplify right side
    107,320.80x = 10,934,229,458.88
  5. Step 5: Solve for x
    x = 10,934,229,458.88/107,320.80
  6. Step 6: Final answer
    x = 101,883.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.