Home / 193,339.49-290,041.34-81,028.15

Finding the Fourth Proportional to 193,339.49, 290,041.34 and 81,028.15

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Solution

The fourth proportional to 193,339.49, 290,041.34 and 81,028.15 is: 121,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,339.49 : 290,041.34 = 81,028.15 : x
  2. Step 2: Convert to fraction form
    193,339.49/290,041.34 = 81,028.15/x
  3. Step 3: Cross multiply
    193,339.49x = 290,041.34 × 81,028.15
  4. Step 4: Simplify right side
    193,339.49x = 23,501,512,681.19
  5. Step 5: Solve for x
    x = 23,501,512,681.19/193,339.49
  6. Step 6: Final answer
    x = 121,555.68

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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.