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Finding the Fourth Proportional to 102,759.71, 154,151.91 and 36,186.08

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Solution

The fourth proportional to 102,759.71, 154,151.91 and 36,186.08 is: 54,283.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,759.71 : 154,151.91 = 36,186.08 : x
  2. Step 2: Convert to fraction form
    102,759.71/154,151.91 = 36,186.08/x
  3. Step 3: Cross multiply
    102,759.71x = 154,151.91 × 36,186.08
  4. Step 4: Simplify right side
    102,759.71x = 5,578,152,576.65
  5. Step 5: Solve for x
    x = 5,578,152,576.65/102,759.71
  6. Step 6: Final answer
    x = 54,283.46

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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.