Home / 148,405.86-204,792.75-83,876.40

Finding the Fourth Proportional to 148,405.86, 204,792.75 and 83,876.40

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Solution

The fourth proportional to 148,405.86, 204,792.75 and 83,876.40 is: 115,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,405.86 : 204,792.75 = 83,876.40 : x
  2. Step 2: Convert to fraction form
    148,405.86/204,792.75 = 83,876.40/x
  3. Step 3: Cross multiply
    148,405.86x = 204,792.75 × 83,876.40
  4. Step 4: Simplify right side
    148,405.86x = 17,177,278,616.10
  5. Step 5: Solve for x
    x = 17,177,278,616.10/148,405.86
  6. Step 6: Final answer
    x = 115,745.29

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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.