Home / 122,147.58-183,192.40-68,863.14

Finding the Fourth Proportional to 122,147.58, 183,192.40 and 68,863.14

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Solution

The fourth proportional to 122,147.58, 183,192.40 and 68,863.14 is: 103,278.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,147.58 : 183,192.40 = 68,863.14 : x
  2. Step 2: Convert to fraction form
    122,147.58/183,192.40 = 68,863.14/x
  3. Step 3: Cross multiply
    122,147.58x = 183,192.40 × 68,863.14
  4. Step 4: Simplify right side
    122,147.58x = 12,615,203,888.14
  5. Step 5: Solve for x
    x = 12,615,203,888.14/122,147.58
  6. Step 6: Final answer
    x = 103,278.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.