Home / 223,103.53-307,881.17-121,126.97

Finding the Fourth Proportional to 223,103.53, 307,881.17 and 121,126.97

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Solution

The fourth proportional to 223,103.53, 307,881.17 and 121,126.97 is: 167,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,103.53 : 307,881.17 = 121,126.97 : x
  2. Step 2: Convert to fraction form
    223,103.53/307,881.17 = 121,126.97/x
  3. Step 3: Cross multiply
    223,103.53x = 307,881.17 × 121,126.97
  4. Step 4: Simplify right side
    223,103.53x = 37,292,711,097.11
  5. Step 5: Solve for x
    x = 37,292,711,097.11/223,103.53
  6. Step 6: Final answer
    x = 167,154.29

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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.