Home / 150,135.16-207,184.76-82,151.36

Finding the Fourth Proportional to 150,135.16, 207,184.76 and 82,151.36

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Solution

The fourth proportional to 150,135.16, 207,184.76 and 82,151.36 is: 113,367.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,135.16 : 207,184.76 = 82,151.36 : x
  2. Step 2: Convert to fraction form
    150,135.16/207,184.76 = 82,151.36/x
  3. Step 3: Cross multiply
    150,135.16x = 207,184.76 × 82,151.36
  4. Step 4: Simplify right side
    150,135.16x = 17,020,509,805.27
  5. Step 5: Solve for x
    x = 17,020,509,805.27/150,135.16
  6. Step 6: Final answer
    x = 113,367.91

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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.