Home / 109,821.78-151,552.46-62,073.50

Finding the Fourth Proportional to 109,821.78, 151,552.46 and 62,073.50

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Solution

The fourth proportional to 109,821.78, 151,552.46 and 62,073.50 is: 85,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,821.78 : 151,552.46 = 62,073.50 : x
  2. Step 2: Convert to fraction form
    109,821.78/151,552.46 = 62,073.50/x
  3. Step 3: Cross multiply
    109,821.78x = 151,552.46 × 62,073.50
  4. Step 4: Simplify right side
    109,821.78x = 9,407,391,625.81
  5. Step 5: Solve for x
    x = 9,407,391,625.81/109,821.78
  6. Step 6: Final answer
    x = 85,660.53

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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.