Home / 148,974.75-205,585.16-81,906.75

Finding the Fourth Proportional to 148,974.75, 205,585.16 and 81,906.75

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Solution

The fourth proportional to 148,974.75, 205,585.16 and 81,906.75 is: 113,031.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,974.75 : 205,585.16 = 81,906.75 : x
  2. Step 2: Convert to fraction form
    148,974.75/205,585.16 = 81,906.75/x
  3. Step 3: Cross multiply
    148,974.75x = 205,585.16 × 81,906.75
  4. Step 4: Simplify right side
    148,974.75x = 16,838,812,303.83
  5. Step 5: Solve for x
    x = 16,838,812,303.83/148,974.75
  6. Step 6: Final answer
    x = 113,031.32

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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.