Home / 222,267.72-306,738.18-121,665.72

Finding the Fourth Proportional to 222,267.72, 306,738.18 and 121,665.72

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Solution

The fourth proportional to 222,267.72, 306,738.18 and 121,665.72 is: 167,903.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,267.72 : 306,738.18 = 121,665.72 : x
  2. Step 2: Convert to fraction form
    222,267.72/306,738.18 = 121,665.72/x
  3. Step 3: Cross multiply
    222,267.72x = 306,738.18 × 121,665.72
  4. Step 4: Simplify right side
    222,267.72x = 37,319,521,521.19
  5. Step 5: Solve for x
    x = 37,319,521,521.19/222,267.72
  6. Step 6: Final answer
    x = 167,903.47

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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.