Home / 127,944.40-191,916.60-83,621.20

Finding the Fourth Proportional to 127,944.40, 191,916.60 and 83,621.20

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Solution

The fourth proportional to 127,944.40, 191,916.60 and 83,621.20 is: 125,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,944.40 : 191,916.60 = 83,621.20 : x
  2. Step 2: Convert to fraction form
    127,944.40/191,916.60 = 83,621.20/x
  3. Step 3: Cross multiply
    127,944.40x = 191,916.60 × 83,621.20
  4. Step 4: Simplify right side
    127,944.40x = 16,048,296,391.92
  5. Step 5: Solve for x
    x = 16,048,296,391.92/127,944.40
  6. Step 6: Final answer
    x = 125,431.80

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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.