Home / 145,885.46-218,644.12-78,249.75

Finding the Fourth Proportional to 145,885.46, 218,644.12 and 78,249.75

Calculator

Solution

The fourth proportional to 145,885.46, 218,644.12 and 78,249.75 is: 117,275.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,885.46 : 218,644.12 = 78,249.75 : x
  2. Step 2: Convert to fraction form
    145,885.46/218,644.12 = 78,249.75/x
  3. Step 3: Cross multiply
    145,885.46x = 218,644.12 × 78,249.75
  4. Step 4: Simplify right side
    145,885.46x = 17,108,847,796.59
  5. Step 5: Solve for x
    x = 17,108,847,796.59/145,885.46
  6. Step 6: Final answer
    x = 117,275.89

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.