Home / 100,849.54-139,171.23-55,526.60

Finding the Fourth Proportional to 100,849.54, 139,171.23 and 55,526.60

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Solution

The fourth proportional to 100,849.54, 139,171.23 and 55,526.60 is: 76,626.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,849.54 : 139,171.23 = 55,526.60 : x
  2. Step 2: Convert to fraction form
    100,849.54/139,171.23 = 55,526.60/x
  3. Step 3: Cross multiply
    100,849.54x = 139,171.23 × 55,526.60
  4. Step 4: Simplify right side
    100,849.54x = 7,727,705,219.72
  5. Step 5: Solve for x
    x = 7,727,705,219.72/100,849.54
  6. Step 6: Final answer
    x = 76,626.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.