Home / 223,721.18-308,741.70-121,753.22

Finding the Fourth Proportional to 223,721.18, 308,741.70 and 121,753.22

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Solution

The fourth proportional to 223,721.18, 308,741.70 and 121,753.22 is: 168,022.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,721.18 : 308,741.70 = 121,753.22 : x
  2. Step 2: Convert to fraction form
    223,721.18/308,741.70 = 121,753.22/x
  3. Step 3: Cross multiply
    223,721.18x = 308,741.70 × 121,753.22
  4. Step 4: Simplify right side
    223,721.18x = 37,590,296,123.27
  5. Step 5: Solve for x
    x = 37,590,296,123.27/223,721.18
  6. Step 6: Final answer
    x = 168,022.97

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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.