Home / 143,391.18-197,929.05-86,802.57

Finding the Fourth Proportional to 143,391.18, 197,929.05 and 86,802.57

Calculator

Solution

The fourth proportional to 143,391.18, 197,929.05 and 86,802.57 is: 119,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,391.18 : 197,929.05 = 86,802.57 : x
  2. Step 2: Convert to fraction form
    143,391.18/197,929.05 = 86,802.57/x
  3. Step 3: Cross multiply
    143,391.18x = 197,929.05 × 86,802.57
  4. Step 4: Simplify right side
    143,391.18x = 17,180,750,217.66
  5. Step 5: Solve for x
    x = 17,180,750,217.66/143,391.18
  6. Step 6: Final answer
    x = 119,817.34

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.