Home / 217,985.40-327,186.90-112,879.80

Finding the Fourth Proportional to 217,985.40, 327,186.90 and 112,879.80

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Solution

The fourth proportional to 217,985.40, 327,186.90 and 112,879.80 is: 169,427.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,985.40 : 327,186.90 = 112,879.80 : x
  2. Step 2: Convert to fraction form
    217,985.40/327,186.90 = 112,879.80/x
  3. Step 3: Cross multiply
    217,985.40x = 327,186.90 × 112,879.80
  4. Step 4: Simplify right side
    217,985.40x = 36,932,791,834.62
  5. Step 5: Solve for x
    x = 36,932,791,834.62/217,985.40
  6. Step 6: Final answer
    x = 169,427.82

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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.