Home / 101,357-139,876.98-56,645

Finding the Fourth Proportional to 101,357, 139,876.98 and 56,645

Calculator

Solution

The fourth proportional to 101,357, 139,876.98 and 56,645 is: 78,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,357 : 139,876.98 = 56,645 : x
  2. Step 2: Convert to fraction form
    101,357/139,876.98 = 56,645/x
  3. Step 3: Cross multiply
    101,357x = 139,876.98 × 56,645
  4. Step 4: Simplify right side
    101,357x = 7,923,331,532.10
  5. Step 5: Solve for x
    x = 7,923,331,532.10/101,357
  6. Step 6: Final answer
    x = 78,172.51

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.