Home / 109,992.70-151,792.07-71,776.69

Finding the Fourth Proportional to 109,992.70, 151,792.07 and 71,776.69

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Solution

The fourth proportional to 109,992.70, 151,792.07 and 71,776.69 is: 99,053.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,992.70 : 151,792.07 = 71,776.69 : x
  2. Step 2: Convert to fraction form
    109,992.70/151,792.07 = 71,776.69/x
  3. Step 3: Cross multiply
    109,992.70x = 151,792.07 × 71,776.69
  4. Step 4: Simplify right side
    109,992.70x = 10,895,132,737.48
  5. Step 5: Solve for x
    x = 10,895,132,737.48/109,992.70
  6. Step 6: Final answer
    x = 99,053.24

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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.