Home / 223,109.80-307,889.79-121,133.23

Finding the Fourth Proportional to 223,109.80, 307,889.79 and 121,133.23

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Solution

The fourth proportional to 223,109.80, 307,889.79 and 121,133.23 is: 167,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,109.80 : 307,889.79 = 121,133.23 : x
  2. Step 2: Convert to fraction form
    223,109.80/307,889.79 = 121,133.23/x
  3. Step 3: Cross multiply
    223,109.80x = 307,889.79 × 121,133.23
  4. Step 4: Simplify right side
    223,109.80x = 37,295,684,746.72
  5. Step 5: Solve for x
    x = 37,295,684,746.72/223,109.80
  6. Step 6: Final answer
    x = 167,162.92

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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.