Home / 99.23-136.69-71.52

Finding the Fourth Proportional to 99.23, 136.69 and 71.52

Calculator

Solution

The fourth proportional to 99.23, 136.69 and 71.52 is: 98.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.23 : 136.69 = 71.52 : x
  2. Step 2: Convert to fraction form
    99.23/136.69 = 71.52/x
  3. Step 3: Cross multiply
    99.23x = 136.69 × 71.52
  4. Step 4: Simplify right side
    99.23x = 9,775.38
  5. Step 5: Solve for x
    x = 9,775.38/99.23
  6. Step 6: Final answer
    x = 98.52

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.