Home / 131,739.14-181,904.81-121,663.89

Finding the Fourth Proportional to 131,739.14, 181,904.81 and 121,663.89

Calculator

Solution

The fourth proportional to 131,739.14, 181,904.81 and 121,663.89 is: 167,992.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,739.14 : 181,904.81 = 121,663.89 : x
  2. Step 2: Convert to fraction form
    131,739.14/181,904.81 = 121,663.89/x
  3. Step 3: Cross multiply
    131,739.14x = 181,904.81 × 121,663.89
  4. Step 4: Simplify right side
    131,739.14x = 22,131,246,185.99
  5. Step 5: Solve for x
    x = 22,131,246,185.99/131,739.14
  6. Step 6: Final answer
    x = 167,992.95

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.