Home / 193,540.34-290,405.63-86,999.58

Finding the Fourth Proportional to 193,540.34, 290,405.63 and 86,999.58

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Solution

The fourth proportional to 193,540.34, 290,405.63 and 86,999.58 is: 130,542.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,540.34 : 290,405.63 = 86,999.58 : x
  2. Step 2: Convert to fraction form
    193,540.34/290,405.63 = 86,999.58/x
  3. Step 3: Cross multiply
    193,540.34x = 290,405.63 × 86,999.58
  4. Step 4: Simplify right side
    193,540.34x = 25,265,168,057.13
  5. Step 5: Solve for x
    x = 25,265,168,057.13/193,540.34
  6. Step 6: Final answer
    x = 130,542.13

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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.