Home / 147,577.36-203,650.68-87,167.56

Finding the Fourth Proportional to 147,577.36, 203,650.68 and 87,167.56

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Solution

The fourth proportional to 147,577.36, 203,650.68 and 87,167.56 is: 120,287.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,577.36 : 203,650.68 = 87,167.56 : x
  2. Step 2: Convert to fraction form
    147,577.36/203,650.68 = 87,167.56/x
  3. Step 3: Cross multiply
    147,577.36x = 203,650.68 × 87,167.56
  4. Step 4: Simplify right side
    147,577.36x = 17,751,732,867.94
  5. Step 5: Solve for x
    x = 17,751,732,867.94/147,577.36
  6. Step 6: Final answer
    x = 120,287.64

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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.