Home / 390,111.72-585,107.66-123,837.64

Finding the Fourth Proportional to 390,111.72, 585,107.66 and 123,837.64

Calculator

Solution

The fourth proportional to 390,111.72, 585,107.66 and 123,837.64 is: 185,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,111.72 : 585,107.66 = 123,837.64 : x
  2. Step 2: Convert to fraction form
    390,111.72/585,107.66 = 123,837.64/x
  3. Step 3: Cross multiply
    390,111.72x = 585,107.66 × 123,837.64
  4. Step 4: Simplify right side
    390,111.72x = 72,458,351,760.32
  5. Step 5: Solve for x
    x = 72,458,351,760.32/390,111.72
  6. Step 6: Final answer
    x = 185,737.44

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.