Home / 223,802.72-308,844.58-121,829.03

Finding the Fourth Proportional to 223,802.72, 308,844.58 and 121,829.03

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Solution

The fourth proportional to 223,802.72, 308,844.58 and 121,829.03 is: 168,122.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,802.72 : 308,844.58 = 121,829.03 : x
  2. Step 2: Convert to fraction form
    223,802.72/308,844.58 = 121,829.03/x
  3. Step 3: Cross multiply
    223,802.72x = 308,844.58 × 121,829.03
  4. Step 4: Simplify right side
    223,802.72x = 37,626,233,448.79
  5. Step 5: Solve for x
    x = 37,626,233,448.79/223,802.72
  6. Step 6: Final answer
    x = 168,122.32

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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.