Home / 159,726,036.17-238,958,669.25-120,976,138.64

Finding the Fourth Proportional to 159,726,036.17, 238,958,669.25 and 120,976,138.64

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Solution

The fourth proportional to 159,726,036.17, 238,958,669.25 and 120,976,138.64 is: 180,986,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,726,036.17 : 238,958,669.25 = 120,976,138.64 : x
  2. Step 2: Convert to fraction form
    159,726,036.17/238,958,669.25 = 120,976,138.64/x
  3. Step 3: Cross multiply
    159,726,036.17x = 238,958,669.25 × 120,976,138.64
  4. Step 4: Simplify right side
    159,726,036.17x = 28,908,297,099,223,112
  5. Step 5: Solve for x
    x = 28,908,297,099,223,112/159,726,036.17
  6. Step 6: Final answer
    x = 180,986,755.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.