Home / 223,934.31-309,032.67-121,964.49

Finding the Fourth Proportional to 223,934.31, 309,032.67 and 121,964.49

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Solution

The fourth proportional to 223,934.31, 309,032.67 and 121,964.49 is: 168,312.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,934.31 : 309,032.67 = 121,964.49 : x
  2. Step 2: Convert to fraction form
    223,934.31/309,032.67 = 121,964.49/x
  3. Step 3: Cross multiply
    223,934.31x = 309,032.67 × 121,964.49
  4. Step 4: Simplify right side
    223,934.31x = 37,691,011,989.89
  5. Step 5: Solve for x
    x = 37,691,011,989.89/223,934.31
  6. Step 6: Final answer
    x = 168,312.81

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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.