Home / 127,949.06-191,923.60-65,579.78

Finding the Fourth Proportional to 127,949.06, 191,923.60 and 65,579.78

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Solution

The fourth proportional to 127,949.06, 191,923.60 and 65,579.78 is: 98,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,949.06 : 191,923.60 = 65,579.78 : x
  2. Step 2: Convert to fraction form
    127,949.06/191,923.60 = 65,579.78/x
  3. Step 3: Cross multiply
    127,949.06x = 191,923.60 × 65,579.78
  4. Step 4: Simplify right side
    127,949.06x = 12,586,307,464.81
  5. Step 5: Solve for x
    x = 12,586,307,464.81/127,949.06
  6. Step 6: Final answer
    x = 98,369.68

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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.