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Finding the Fourth Proportional to 100,349.84, 150,494.04 and 69,384.08

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Solution

The fourth proportional to 100,349.84, 150,494.04 and 69,384.08 is: 104,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,349.84 : 150,494.04 = 69,384.08 : x
  2. Step 2: Convert to fraction form
    100,349.84/150,494.04 = 69,384.08/x
  3. Step 3: Cross multiply
    100,349.84x = 150,494.04 × 69,384.08
  4. Step 4: Simplify right side
    100,349.84x = 10,441,890,510.88
  5. Step 5: Solve for x
    x = 10,441,890,510.88/100,349.84
  6. Step 6: Final answer
    x = 104,054.88

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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.