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Finding the Fourth Proportional to 102,700.89, 154,040.81 and 27,818.01

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Solution

The fourth proportional to 102,700.89, 154,040.81 and 27,818.01 is: 41,724.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,700.89 : 154,040.81 = 27,818.01 : x
  2. Step 2: Convert to fraction form
    102,700.89/154,040.81 = 27,818.01/x
  3. Step 3: Cross multiply
    102,700.89x = 154,040.81 × 27,818.01
  4. Step 4: Simplify right side
    102,700.89x = 4,285,108,653.90
  5. Step 5: Solve for x
    x = 4,285,108,653.90/102,700.89
  6. Step 6: Final answer
    x = 41,724.16

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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.