Home / 122,744.40-183,922.20-102,915.60

Finding the Fourth Proportional to 122,744.40, 183,922.20 and 102,915.60

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Solution

The fourth proportional to 122,744.40, 183,922.20 and 102,915.60 is: 154,210.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,744.40 : 183,922.20 = 102,915.60 : x
  2. Step 2: Convert to fraction form
    122,744.40/183,922.20 = 102,915.60/x
  3. Step 3: Cross multiply
    122,744.40x = 183,922.20 × 102,915.60
  4. Step 4: Simplify right side
    122,744.40x = 18,928,463,566.32
  5. Step 5: Solve for x
    x = 18,928,463,566.32/122,744.40
  6. Step 6: Final answer
    x = 154,210.40

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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.