Home / 223,035.14-307,781.62-121,055.78

Finding the Fourth Proportional to 223,035.14, 307,781.62 and 121,055.78

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Solution

The fourth proportional to 223,035.14, 307,781.62 and 121,055.78 is: 167,053.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,035.14 : 307,781.62 = 121,055.78 : x
  2. Step 2: Convert to fraction form
    223,035.14/307,781.62 = 121,055.78/x
  3. Step 3: Cross multiply
    223,035.14x = 307,781.62 × 121,055.78
  4. Step 4: Simplify right side
    223,035.14x = 37,258,742,237.22
  5. Step 5: Solve for x
    x = 37,258,742,237.22/223,035.14
  6. Step 6: Final answer
    x = 167,053.24

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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.