Home / 223,110.30-307,890.42-121,133.74

Finding the Fourth Proportional to 223,110.30, 307,890.42 and 121,133.74

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Solution

The fourth proportional to 223,110.30, 307,890.42 and 121,133.74 is: 167,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,110.30 : 307,890.42 = 121,133.74 : x
  2. Step 2: Convert to fraction form
    223,110.30/307,890.42 = 121,133.74/x
  3. Step 3: Cross multiply
    223,110.30x = 307,890.42 × 121,133.74
  4. Step 4: Simplify right side
    223,110.30x = 37,295,917,479.10
  5. Step 5: Solve for x
    x = 37,295,917,479.10/223,110.30
  6. Step 6: Final answer
    x = 167,163.58

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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.