Home / 114,115.28-170,336.83-100,648.42

Finding the Fourth Proportional to 114,115.28, 170,336.83 and 100,648.42

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Solution

The fourth proportional to 114,115.28, 170,336.83 and 100,648.42 is: 150,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,115.28 : 170,336.83 = 100,648.42 : x
  2. Step 2: Convert to fraction form
    114,115.28/170,336.83 = 100,648.42/x
  3. Step 3: Cross multiply
    114,115.28x = 170,336.83 × 100,648.42
  4. Step 4: Simplify right side
    114,115.28x = 17,144,132,807.31
  5. Step 5: Solve for x
    x = 17,144,132,807.31/114,115.28
  6. Step 6: Final answer
    x = 150,235.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.