Home / 122,110.40-183,165.60-92,172.80

Finding the Fourth Proportional to 122,110.40, 183,165.60 and 92,172.80

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Solution

The fourth proportional to 122,110.40, 183,165.60 and 92,172.80 is: 138,259.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,110.40 : 183,165.60 = 92,172.80 : x
  2. Step 2: Convert to fraction form
    122,110.40/183,165.60 = 92,172.80/x
  3. Step 3: Cross multiply
    122,110.40x = 183,165.60 × 92,172.80
  4. Step 4: Simplify right side
    122,110.40x = 16,882,886,215.68
  5. Step 5: Solve for x
    x = 16,882,886,215.68/122,110.40
  6. Step 6: Final answer
    x = 138,259.20

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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.