Home / 223,795.78-308,842.11-121,824.16

Finding the Fourth Proportional to 223,795.78, 308,842.11 and 121,824.16

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Solution

The fourth proportional to 223,795.78, 308,842.11 and 121,824.16 is: 168,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,795.78 : 308,842.11 = 121,824.16 : x
  2. Step 2: Convert to fraction form
    223,795.78/308,842.11 = 121,824.16/x
  3. Step 3: Cross multiply
    223,795.78x = 308,842.11 × 121,824.16
  4. Step 4: Simplify right side
    223,795.78x = 37,624,429,851.27
  5. Step 5: Solve for x
    x = 37,624,429,851.27/223,795.78
  6. Step 6: Final answer
    x = 168,119.48

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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.