Home / 147,256.88-203,214.36-80,189.36

Finding the Fourth Proportional to 147,256.88, 203,214.36 and 80,189.36

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Solution

The fourth proportional to 147,256.88, 203,214.36 and 80,189.36 is: 110,661.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,256.88 : 203,214.36 = 80,189.36 : x
  2. Step 2: Convert to fraction form
    147,256.88/203,214.36 = 80,189.36/x
  3. Step 3: Cross multiply
    147,256.88x = 203,214.36 × 80,189.36
  4. Step 4: Simplify right side
    147,256.88x = 16,295,629,471.21
  5. Step 5: Solve for x
    x = 16,295,629,471.21/147,256.88
  6. Step 6: Final answer
    x = 110,661.24

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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.