Home / 223,795.21-308,841.33-121,823.61

Finding the Fourth Proportional to 223,795.21, 308,841.33 and 121,823.61

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Solution

The fourth proportional to 223,795.21, 308,841.33 and 121,823.61 is: 168,118.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,795.21 : 308,841.33 = 121,823.61 : x
  2. Step 2: Convert to fraction form
    223,795.21/308,841.33 = 121,823.61/x
  3. Step 3: Cross multiply
    223,795.21x = 308,841.33 × 121,823.61
  4. Step 4: Simplify right side
    223,795.21x = 37,624,165,737.80
  5. Step 5: Solve for x
    x = 37,624,165,737.80/223,795.21
  6. Step 6: Final answer
    x = 168,118.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.