Home / 101,385.03-139,864.85-65,586.57

Finding the Fourth Proportional to 101,385.03, 139,864.85 and 65,586.57

Calculator

Solution

The fourth proportional to 101,385.03, 139,864.85 and 65,586.57 is: 90,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,385.03 : 139,864.85 = 65,586.57 : x
  2. Step 2: Convert to fraction form
    101,385.03/139,864.85 = 65,586.57/x
  3. Step 3: Cross multiply
    101,385.03x = 139,864.85 × 65,586.57
  4. Step 4: Simplify right side
    101,385.03x = 9,173,255,447.13
  5. Step 5: Solve for x
    x = 9,173,255,447.13/101,385.03
  6. Step 6: Final answer
    x = 90,479.39

Related Problems

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.