Home / 193,500.94-290,363.50-81,171.12

Finding the Fourth Proportional to 193,500.94, 290,363.50 and 81,171.12

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Solution

The fourth proportional to 193,500.94, 290,363.50 and 81,171.12 is: 121,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,500.94 : 290,363.50 = 81,171.12 : x
  2. Step 2: Convert to fraction form
    193,500.94/290,363.50 = 81,171.12/x
  3. Step 3: Cross multiply
    193,500.94x = 290,363.50 × 81,171.12
  4. Step 4: Simplify right side
    193,500.94x = 23,569,130,502.12
  5. Step 5: Solve for x
    x = 23,569,130,502.12/193,500.94
  6. Step 6: Final answer
    x = 121,803.70

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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.