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Finding the Fourth Proportional to 103,568.66, 155,018.86 and 53,579.92

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Solution

The fourth proportional to 103,568.66, 155,018.86 and 53,579.92 is: 80,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,568.66 : 155,018.86 = 53,579.92 : x
  2. Step 2: Convert to fraction form
    103,568.66/155,018.86 = 53,579.92/x
  3. Step 3: Cross multiply
    103,568.66x = 155,018.86 × 53,579.92
  4. Step 4: Simplify right side
    103,568.66x = 8,305,898,117.29
  5. Step 5: Solve for x
    x = 8,305,898,117.29/103,568.66
  6. Step 6: Final answer
    x = 80,197.02

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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.