Home / 193,188.36-289,615.02-74,778.20

Finding the Fourth Proportional to 193,188.36, 289,615.02 and 74,778.20

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Solution

The fourth proportional to 193,188.36, 289,615.02 and 74,778.20 is: 112,102.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,188.36 : 289,615.02 = 74,778.20 : x
  2. Step 2: Convert to fraction form
    193,188.36/289,615.02 = 74,778.20/x
  3. Step 3: Cross multiply
    193,188.36x = 289,615.02 × 74,778.20
  4. Step 4: Simplify right side
    193,188.36x = 21,656,889,888.56
  5. Step 5: Solve for x
    x = 21,656,889,888.56/193,188.36
  6. Step 6: Final answer
    x = 112,102.46

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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.