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Finding the Fourth Proportional to 102,950.10, 154,425.15 and 36,389.70

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Solution

The fourth proportional to 102,950.10, 154,425.15 and 36,389.70 is: 54,584.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,950.10 : 154,425.15 = 36,389.70 : x
  2. Step 2: Convert to fraction form
    102,950.10/154,425.15 = 36,389.70/x
  3. Step 3: Cross multiply
    102,950.10x = 154,425.15 × 36,389.70
  4. Step 4: Simplify right side
    102,950.10x = 5,619,484,880.96
  5. Step 5: Solve for x
    x = 5,619,484,880.96/102,950.10
  6. Step 6: Final answer
    x = 54,584.55

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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.