Home / 239,028.77-358,579.91-81,220.32

Finding the Fourth Proportional to 239,028.77, 358,579.91 and 81,220.32

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Solution

The fourth proportional to 239,028.77, 358,579.91 and 81,220.32 is: 121,842.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,028.77 : 358,579.91 = 81,220.32 : x
  2. Step 2: Convert to fraction form
    239,028.77/358,579.91 = 81,220.32/x
  3. Step 3: Cross multiply
    239,028.77x = 358,579.91 × 81,220.32
  4. Step 4: Simplify right side
    239,028.77x = 29,123,975,238.82
  5. Step 5: Solve for x
    x = 29,123,975,238.82/239,028.77
  6. Step 6: Final answer
    x = 121,842.97

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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.