Home / 193,522.47-290,395.86-81,192.75

Finding the Fourth Proportional to 193,522.47, 290,395.86 and 81,192.75

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Solution

The fourth proportional to 193,522.47, 290,395.86 and 81,192.75 is: 121,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,522.47 : 290,395.86 = 81,192.75 : x
  2. Step 2: Convert to fraction form
    193,522.47/290,395.86 = 81,192.75/x
  3. Step 3: Cross multiply
    193,522.47x = 290,395.86 × 81,192.75
  4. Step 4: Simplify right side
    193,522.47x = 23,578,038,462.02
  5. Step 5: Solve for x
    x = 23,578,038,462.02/193,522.47
  6. Step 6: Final answer
    x = 121,836.18

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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.