Home / 212,382.81-293,089.32-121,744.22

Finding the Fourth Proportional to 212,382.81, 293,089.32 and 121,744.22

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Solution

The fourth proportional to 212,382.81, 293,089.32 and 121,744.22 is: 168,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,382.81 : 293,089.32 = 121,744.22 : x
  2. Step 2: Convert to fraction form
    212,382.81/293,089.32 = 121,744.22/x
  3. Step 3: Cross multiply
    212,382.81x = 293,089.32 × 121,744.22
  4. Step 4: Simplify right side
    212,382.81x = 35,681,929,188.28
  5. Step 5: Solve for x
    x = 35,681,929,188.28/212,382.81
  6. Step 6: Final answer
    x = 168,007.61

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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.