Home / 198,411.16-273,809.39-107,768.89

Finding the Fourth Proportional to 198,411.16, 273,809.39 and 107,768.89

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Solution

The fourth proportional to 198,411.16, 273,809.39 and 107,768.89 is: 148,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,411.16 : 273,809.39 = 107,768.89 : x
  2. Step 2: Convert to fraction form
    198,411.16/273,809.39 = 107,768.89/x
  3. Step 3: Cross multiply
    198,411.16x = 273,809.39 × 107,768.89
  4. Step 4: Simplify right side
    198,411.16x = 29,508,134,031.88
  5. Step 5: Solve for x
    x = 29,508,134,031.88/198,411.16
  6. Step 6: Final answer
    x = 148,722.15

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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.