Home / 193,477.32-290,328.03-81,147.51

Finding the Fourth Proportional to 193,477.32, 290,328.03 and 81,147.51

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Solution

The fourth proportional to 193,477.32, 290,328.03 and 81,147.51 is: 121,768.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,477.32 : 290,328.03 = 81,147.51 : x
  2. Step 2: Convert to fraction form
    193,477.32/290,328.03 = 81,147.51/x
  3. Step 3: Cross multiply
    193,477.32x = 290,328.03 × 81,147.51
  4. Step 4: Simplify right side
    193,477.32x = 23,559,396,717.71
  5. Step 5: Solve for x
    x = 23,559,396,717.71/193,477.32
  6. Step 6: Final answer
    x = 121,768.26

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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.