Home / 171,071.06-256,678.36-76,235.92

Finding the Fourth Proportional to 171,071.06, 256,678.36 and 76,235.92

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Solution

The fourth proportional to 171,071.06, 256,678.36 and 76,235.92 is: 114,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,071.06 : 256,678.36 = 76,235.92 : x
  2. Step 2: Convert to fraction form
    171,071.06/256,678.36 = 76,235.92/x
  3. Step 3: Cross multiply
    171,071.06x = 256,678.36 × 76,235.92
  4. Step 4: Simplify right side
    171,071.06x = 19,568,110,086.41
  5. Step 5: Solve for x
    x = 19,568,110,086.41/171,071.06
  6. Step 6: Final answer
    x = 114,385.86

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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.