Home / 223,721.02-308,736.32-121,747.29

Finding the Fourth Proportional to 223,721.02, 308,736.32 and 121,747.29

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Solution

The fourth proportional to 223,721.02, 308,736.32 and 121,747.29 is: 168,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,721.02 : 308,736.32 = 121,747.29 : x
  2. Step 2: Convert to fraction form
    223,721.02/308,736.32 = 121,747.29/x
  3. Step 3: Cross multiply
    223,721.02x = 308,736.32 × 121,747.29
  4. Step 4: Simplify right side
    223,721.02x = 37,587,810,284.57
  5. Step 5: Solve for x
    x = 37,587,810,284.57/223,721.02
  6. Step 6: Final answer
    x = 168,011.97

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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.