Home / 213,263.91-319,863.06-71,111.66

Finding the Fourth Proportional to 213,263.91, 319,863.06 and 71,111.66

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Solution

The fourth proportional to 213,263.91, 319,863.06 and 71,111.66 is: 106,656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,263.91 : 319,863.06 = 71,111.66 : x
  2. Step 2: Convert to fraction form
    213,263.91/319,863.06 = 71,111.66/x
  3. Step 3: Cross multiply
    213,263.91x = 319,863.06 × 71,111.66
  4. Step 4: Simplify right side
    213,263.91x = 22,745,991,569.96
  5. Step 5: Solve for x
    x = 22,745,991,569.96/213,263.91
  6. Step 6: Final answer
    x = 106,656.54

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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.