Home / 223,017.05-307,763.82-121,042.51

Finding the Fourth Proportional to 223,017.05, 307,763.82 and 121,042.51

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Solution

The fourth proportional to 223,017.05, 307,763.82 and 121,042.51 is: 167,038.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,017.05 : 307,763.82 = 121,042.51 : x
  2. Step 2: Convert to fraction form
    223,017.05/307,763.82 = 121,042.51/x
  3. Step 3: Cross multiply
    223,017.05x = 307,763.82 × 121,042.51
  4. Step 4: Simplify right side
    223,017.05x = 37,252,505,259.99
  5. Step 5: Solve for x
    x = 37,252,505,259.99/223,017.05
  6. Step 6: Final answer
    x = 167,038.82

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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.