Home / 122,414.40-183,621.60-66,427.20

Finding the Fourth Proportional to 122,414.40, 183,621.60 and 66,427.20

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Solution

The fourth proportional to 122,414.40, 183,621.60 and 66,427.20 is: 99,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,414.40 : 183,621.60 = 66,427.20 : x
  2. Step 2: Convert to fraction form
    122,414.40/183,621.60 = 66,427.20/x
  3. Step 3: Cross multiply
    122,414.40x = 183,621.60 × 66,427.20
  4. Step 4: Simplify right side
    122,414.40x = 12,197,468,747.52
  5. Step 5: Solve for x
    x = 12,197,468,747.52/122,414.40
  6. Step 6: Final answer
    x = 99,640.80

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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.