Home / 210,572.28-315,768.48-121,887

Finding the Fourth Proportional to 210,572.28, 315,768.48 and 121,887

Calculator

Solution

The fourth proportional to 210,572.28, 315,768.48 and 121,887 is: 182,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,572.28 : 315,768.48 = 121,887 : x
  2. Step 2: Convert to fraction form
    210,572.28/315,768.48 = 121,887/x
  3. Step 3: Cross multiply
    210,572.28x = 315,768.48 × 121,887
  4. Step 4: Simplify right side
    210,572.28x = 38,488,072,721.76
  5. Step 5: Solve for x
    x = 38,488,072,721.76/210,572.28
  6. Step 6: Final answer
    x = 182,778.44

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.