Home / 85,191.43-127,590.21-82,238.98

Finding the Fourth Proportional to 85,191.43, 127,590.21 and 82,238.98

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Solution

The fourth proportional to 85,191.43, 127,590.21 and 82,238.98 is: 123,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,191.43 : 127,590.21 = 82,238.98 : x
  2. Step 2: Convert to fraction form
    85,191.43/127,590.21 = 82,238.98/x
  3. Step 3: Cross multiply
    85,191.43x = 127,590.21 × 82,238.98
  4. Step 4: Simplify right side
    85,191.43x = 10,492,888,409.41
  5. Step 5: Solve for x
    x = 10,492,888,409.41/85,191.43
  6. Step 6: Final answer
    x = 123,168.36

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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.