Home / 154,678.23-213,452.40-90,143.35

Finding the Fourth Proportional to 154,678.23, 213,452.40 and 90,143.35

Calculator

Solution

The fourth proportional to 154,678.23, 213,452.40 and 90,143.35 is: 124,395.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,678.23 : 213,452.40 = 90,143.35 : x
  2. Step 2: Convert to fraction form
    154,678.23/213,452.40 = 90,143.35/x
  3. Step 3: Cross multiply
    154,678.23x = 213,452.40 × 90,143.35
  4. Step 4: Simplify right side
    154,678.23x = 19,241,314,668.36
  5. Step 5: Solve for x
    x = 19,241,314,668.36/154,678.23
  6. Step 6: Final answer
    x = 124,395.75

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.