Home / 209,545.61-289,179.20-129,019.59

Finding the Fourth Proportional to 209,545.61, 289,179.20 and 129,019.59

Calculator

Solution

The fourth proportional to 209,545.61, 289,179.20 and 129,019.59 is: 178,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,545.61 : 289,179.20 = 129,019.59 : x
  2. Step 2: Convert to fraction form
    209,545.61/289,179.20 = 129,019.59/x
  3. Step 3: Cross multiply
    209,545.61x = 289,179.20 × 129,019.59
  4. Step 4: Simplify right side
    209,545.61x = 37,309,782,143.08
  5. Step 5: Solve for x
    x = 37,309,782,143.08/209,545.61
  6. Step 6: Final answer
    x = 178,050.89

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.