Home / 223,114.88-307,901.18-121,141.56

Finding the Fourth Proportional to 223,114.88, 307,901.18 and 121,141.56

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Solution

The fourth proportional to 223,114.88, 307,901.18 and 121,141.56 is: 167,176.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,114.88 : 307,901.18 = 121,141.56 : x
  2. Step 2: Convert to fraction form
    223,114.88/307,901.18 = 121,141.56/x
  3. Step 3: Cross multiply
    223,114.88x = 307,901.18 × 121,141.56
  4. Step 4: Simplify right side
    223,114.88x = 37,299,629,271.04
  5. Step 5: Solve for x
    x = 37,299,629,271.04/223,114.88
  6. Step 6: Final answer
    x = 167,176.79

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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.