Home / 148,702.22-205,203.54-80,717.75

Finding the Fourth Proportional to 148,702.22, 205,203.54 and 80,717.75

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Solution

The fourth proportional to 148,702.22, 205,203.54 and 80,717.75 is: 111,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,702.22 : 205,203.54 = 80,717.75 : x
  2. Step 2: Convert to fraction form
    148,702.22/205,203.54 = 80,717.75/x
  3. Step 3: Cross multiply
    148,702.22x = 205,203.54 × 80,717.75
  4. Step 4: Simplify right side
    148,702.22x = 16,563,568,040.84
  5. Step 5: Solve for x
    x = 16,563,568,040.84/148,702.22
  6. Step 6: Final answer
    x = 111,387.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.