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Finding the Fourth Proportional to 100,572.71, 150,839.08 and 49,918.88

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Solution

The fourth proportional to 100,572.71, 150,839.08 and 49,918.88 is: 74,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,572.71 : 150,839.08 = 49,918.88 : x
  2. Step 2: Convert to fraction form
    100,572.71/150,839.08 = 49,918.88/x
  3. Step 3: Cross multiply
    100,572.71x = 150,839.08 × 49,918.88
  4. Step 4: Simplify right side
    100,572.71x = 7,529,718,186.13
  5. Step 5: Solve for x
    x = 7,529,718,186.13/100,572.71
  6. Step 6: Final answer
    x = 74,868.41

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1.5x scale

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.