Home / 212,392.27-293,067.75-121,730.77

Finding the Fourth Proportional to 212,392.27, 293,067.75 and 121,730.77

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Solution

The fourth proportional to 212,392.27, 293,067.75 and 121,730.77 is: 167,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,392.27 : 293,067.75 = 121,730.77 : x
  2. Step 2: Convert to fraction form
    212,392.27/293,067.75 = 121,730.77/x
  3. Step 3: Cross multiply
    212,392.27x = 293,067.75 × 121,730.77
  4. Step 4: Simplify right side
    212,392.27x = 35,675,362,869.67
  5. Step 5: Solve for x
    x = 35,675,362,869.67/212,392.27
  6. Step 6: Final answer
    x = 167,969.22

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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.