Home / 100,868.78-151,325.85-30,755.18

Finding the Fourth Proportional to 100,868.78, 151,325.85 and 30,755.18

Calculator

Solution

The fourth proportional to 100,868.78, 151,325.85 and 30,755.18 is: 46,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,868.78 : 151,325.85 = 30,755.18 : x
  2. Step 2: Convert to fraction form
    100,868.78/151,325.85 = 30,755.18/x
  3. Step 3: Cross multiply
    100,868.78x = 151,325.85 × 30,755.18
  4. Step 4: Simplify right side
    100,868.78x = 4,654,053,755.40
  5. Step 5: Solve for x
    x = 4,654,053,755.40/100,868.78
  6. Step 6: Final answer
    x = 46,139.69

Related Problems

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.