Home / 150,160.28-207,131.10-99,173.11

Finding the Fourth Proportional to 150,160.28, 207,131.10 and 99,173.11

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Solution

The fourth proportional to 150,160.28, 207,131.10 and 99,173.11 is: 136,799.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,160.28 : 207,131.10 = 99,173.11 : x
  2. Step 2: Convert to fraction form
    150,160.28/207,131.10 = 99,173.11/x
  3. Step 3: Cross multiply
    150,160.28x = 207,131.10 × 99,173.11
  4. Step 4: Simplify right side
    150,160.28x = 20,541,834,868.86
  5. Step 5: Solve for x
    x = 20,541,834,868.86/150,160.28
  6. Step 6: Final answer
    x = 136,799.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.