Home / 143.84-215.70-47.63

Finding the Fourth Proportional to 143.84, 215.70 and 47.63

Calculator

Solution

The fourth proportional to 143.84, 215.70 and 47.63 is: 71.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143.84 : 215.70 = 47.63 : x
  2. Step 2: Convert to fraction form
    143.84/215.70 = 47.63/x
  3. Step 3: Cross multiply
    143.84x = 215.70 × 47.63
  4. Step 4: Simplify right side
    143.84x = 10,272.71
  5. Step 5: Solve for x
    x = 10,272.71/143.84
  6. Step 6: Final answer
    x = 71.42

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.