Home / 147,218.53-203,161.61-80,150.53

Finding the Fourth Proportional to 147,218.53, 203,161.61 and 80,150.53

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Solution

The fourth proportional to 147,218.53, 203,161.61 and 80,150.53 is: 110,607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,218.53 : 203,161.61 = 80,150.53 : x
  2. Step 2: Convert to fraction form
    147,218.53/203,161.61 = 80,150.53/x
  3. Step 3: Cross multiply
    147,218.53x = 203,161.61 × 80,150.53
  4. Step 4: Simplify right side
    147,218.53x = 16,283,510,717.15
  5. Step 5: Solve for x
    x = 16,283,510,717.15/147,218.53
  6. Step 6: Final answer
    x = 110,607.75

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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.