Home / 213,161.86-319,676.14-70,973.92

Finding the Fourth Proportional to 213,161.86, 319,676.14 and 70,973.92

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Solution

The fourth proportional to 213,161.86, 319,676.14 and 70,973.92 is: 106,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,161.86 : 319,676.14 = 70,973.92 : x
  2. Step 2: Convert to fraction form
    213,161.86/319,676.14 = 70,973.92/x
  3. Step 3: Cross multiply
    213,161.86x = 319,676.14 × 70,973.92
  4. Step 4: Simplify right side
    213,161.86x = 22,688,668,786.27
  5. Step 5: Solve for x
    x = 22,688,668,786.27/213,161.86
  6. Step 6: Final answer
    x = 106,438.69

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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.