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Finding the Fourth Proportional to 100,553.57, 150,822.52 and 47,257.21

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Solution

The fourth proportional to 100,553.57, 150,822.52 and 47,257.21 is: 70,882.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,553.57 : 150,822.52 = 47,257.21 : x
  2. Step 2: Convert to fraction form
    100,553.57/150,822.52 = 47,257.21/x
  3. Step 3: Cross multiply
    100,553.57x = 150,822.52 × 47,257.21
  4. Step 4: Simplify right side
    100,553.57x = 7,127,450,988.20
  5. Step 5: Solve for x
    x = 7,127,450,988.20/100,553.57
  6. Step 6: Final answer
    x = 70,882.13

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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.