Home / 122,782.36-168,954.24-102,574.48

Finding the Fourth Proportional to 122,782.36, 168,954.24 and 102,574.48

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Solution

The fourth proportional to 122,782.36, 168,954.24 and 102,574.48 is: 141,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,782.36 : 168,954.24 = 102,574.48 : x
  2. Step 2: Convert to fraction form
    122,782.36/168,954.24 = 102,574.48/x
  3. Step 3: Cross multiply
    122,782.36x = 168,954.24 × 102,574.48
  4. Step 4: Simplify right side
    122,782.36x = 17,330,393,311.80
  5. Step 5: Solve for x
    x = 17,330,393,311.80/122,782.36
  6. Step 6: Final answer
    x = 141,147.26

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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.