Home / 145.43-200.40-135.18

Finding the Fourth Proportional to 145.43, 200.40 and 135.18

Calculator

Solution

The fourth proportional to 145.43, 200.40 and 135.18 is: 186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145.43 : 200.40 = 135.18 : x
  2. Step 2: Convert to fraction form
    145.43/200.40 = 135.18/x
  3. Step 3: Cross multiply
    145.43x = 200.40 × 135.18
  4. Step 4: Simplify right side
    145.43x = 27,088.81
  5. Step 5: Solve for x
    x = 27,088.81/145.43
  6. Step 6: Final answer
    x = 186.27

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.