Home / 223,093.10-307,868.85-121,118.56

Finding the Fourth Proportional to 223,093.10, 307,868.85 and 121,118.56

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Solution

The fourth proportional to 223,093.10, 307,868.85 and 121,118.56 is: 167,143.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,093.10 : 307,868.85 = 121,118.56 : x
  2. Step 2: Convert to fraction form
    223,093.10/307,868.85 = 121,118.56/x
  3. Step 3: Cross multiply
    223,093.10x = 307,868.85 × 121,118.56
  4. Step 4: Simplify right side
    223,093.10x = 37,288,631,011.18
  5. Step 5: Solve for x
    x = 37,288,631,011.18/223,093.10
  6. Step 6: Final answer
    x = 167,143.81

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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.