Home / 100,900.44-139,241.34-55,577.52

Finding the Fourth Proportional to 100,900.44, 139,241.34 and 55,577.52

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Solution

The fourth proportional to 100,900.44, 139,241.34 and 55,577.52 is: 76,696.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,900.44 : 139,241.34 = 55,577.52 : x
  2. Step 2: Convert to fraction form
    100,900.44/139,241.34 = 55,577.52/x
  3. Step 3: Cross multiply
    100,900.44x = 139,241.34 × 55,577.52
  4. Step 4: Simplify right side
    100,900.44x = 7,738,688,358.68
  5. Step 5: Solve for x
    x = 7,738,688,358.68/100,900.44
  6. Step 6: Final answer
    x = 76,696.28

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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.