Home / 100,900.24-139,237.19-55,577.25

Finding the Fourth Proportional to 100,900.24, 139,237.19 and 55,577.25

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Solution

The fourth proportional to 100,900.24, 139,237.19 and 55,577.25 is: 76,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900.24 : 139,237.19 = 55,577.25 : x
  2. Step 2: Convert to fraction form
    100,900.24/139,237.19 = 55,577.25/x
  3. Step 3: Cross multiply
    100,900.24x = 139,237.19 × 55,577.25
  4. Step 4: Simplify right side
    100,900.24x = 7,738,419,143.86
  5. Step 5: Solve for x
    x = 7,738,419,143.86/100,900.24
  6. Step 6: Final answer
    x = 76,693.76

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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.