Home / 129,847.46-195,113.68-69,920.24

Finding the Fourth Proportional to 129,847.46, 195,113.68 and 69,920.24

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Solution

The fourth proportional to 129,847.46, 195,113.68 and 69,920.24 is: 105,064.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,847.46 : 195,113.68 = 69,920.24 : x
  2. Step 2: Convert to fraction form
    129,847.46/195,113.68 = 69,920.24/x
  3. Step 3: Cross multiply
    129,847.46x = 195,113.68 × 69,920.24
  4. Step 4: Simplify right side
    129,847.46x = 13,642,395,471.07
  5. Step 5: Solve for x
    x = 13,642,395,471.07/129,847.46
  6. Step 6: Final answer
    x = 105,064.79

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1.5x scale

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.