Home / 170,126.46-255,189.78-76,522.86

Finding the Fourth Proportional to 170,126.46, 255,189.78 and 76,522.86

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Solution

The fourth proportional to 170,126.46, 255,189.78 and 76,522.86 is: 114,784.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,126.46 : 255,189.78 = 76,522.86 : x
  2. Step 2: Convert to fraction form
    170,126.46/255,189.78 = 76,522.86/x
  3. Step 3: Cross multiply
    170,126.46x = 255,189.78 × 76,522.86
  4. Step 4: Simplify right side
    170,126.46x = 19,527,851,808.37
  5. Step 5: Solve for x
    x = 19,527,851,808.37/170,126.46
  6. Step 6: Final answer
    x = 114,784.33

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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.