Home / 122,416.40-183,624.60-82,758.80

Finding the Fourth Proportional to 122,416.40, 183,624.60 and 82,758.80

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Solution

The fourth proportional to 122,416.40, 183,624.60 and 82,758.80 is: 124,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,416.40 : 183,624.60 = 82,758.80 : x
  2. Step 2: Convert to fraction form
    122,416.40/183,624.60 = 82,758.80/x
  3. Step 3: Cross multiply
    122,416.40x = 183,624.60 × 82,758.80
  4. Step 4: Simplify right side
    122,416.40x = 15,196,551,546.48
  5. Step 5: Solve for x
    x = 15,196,551,546.48/122,416.40
  6. Step 6: Final answer
    x = 124,138.20

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1.5x scale

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.