Home / 208,192.95-312,098.07-75,040.62

Finding the Fourth Proportional to 208,192.95, 312,098.07 and 75,040.62

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Solution

The fourth proportional to 208,192.95, 312,098.07 and 75,040.62 is: 112,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,192.95 : 312,098.07 = 75,040.62 : x
  2. Step 2: Convert to fraction form
    208,192.95/312,098.07 = 75,040.62/x
  3. Step 3: Cross multiply
    208,192.95x = 312,098.07 × 75,040.62
  4. Step 4: Simplify right side
    208,192.95x = 23,420,032,673.60
  5. Step 5: Solve for x
    x = 23,420,032,673.60/208,192.95
  6. Step 6: Final answer
    x = 112,491.96

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1.5x scale

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.