Home / 154,745.16-213,641.49-101,119.92

Finding the Fourth Proportional to 154,745.16, 213,641.49 and 101,119.92

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Solution

The fourth proportional to 154,745.16, 213,641.49 and 101,119.92 is: 139,606.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,745.16 : 213,641.49 = 101,119.92 : x
  2. Step 2: Convert to fraction form
    154,745.16/213,641.49 = 101,119.92/x
  3. Step 3: Cross multiply
    154,745.16x = 213,641.49 × 101,119.92
  4. Step 4: Simplify right side
    154,745.16x = 21,603,410,377.48
  5. Step 5: Solve for x
    x = 21,603,410,377.48/154,745.16
  6. Step 6: Final answer
    x = 139,606.37

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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.