Home / 136,438.91-188,285.80-76,009.69

Finding the Fourth Proportional to 136,438.91, 188,285.80 and 76,009.69

Calculator

Solution

The fourth proportional to 136,438.91, 188,285.80 and 76,009.69 is: 104,893.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,438.91 : 188,285.80 = 76,009.69 : x
  2. Step 2: Convert to fraction form
    136,438.91/188,285.80 = 76,009.69/x
  3. Step 3: Cross multiply
    136,438.91x = 188,285.80 × 76,009.69
  4. Step 4: Simplify right side
    136,438.91x = 14,311,545,947.97
  5. Step 5: Solve for x
    x = 14,311,545,947.97/136,438.91
  6. Step 6: Final answer
    x = 104,893.44

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.