Home / 148,739.26-205,260.16-81,671.26

Finding the Fourth Proportional to 148,739.26, 205,260.16 and 81,671.26

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Solution

The fourth proportional to 148,739.26, 205,260.16 and 81,671.26 is: 112,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,739.26 : 205,260.16 = 81,671.26 : x
  2. Step 2: Convert to fraction form
    148,739.26/205,260.16 = 81,671.26/x
  3. Step 3: Cross multiply
    148,739.26x = 205,260.16 × 81,671.26
  4. Step 4: Simplify right side
    148,739.26x = 16,763,855,895.00
  5. Step 5: Solve for x
    x = 16,763,855,895.00/148,739.26
  6. Step 6: Final answer
    x = 112,706.33

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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.