Home / 70,128.68-105,198.52-23,381.58

Finding the Fourth Proportional to 70,128.68, 105,198.52 and 23,381.58

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Solution

The fourth proportional to 70,128.68, 105,198.52 and 23,381.58 is: 35,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,128.68 : 105,198.52 = 23,381.58 : x
  2. Step 2: Convert to fraction form
    70,128.68/105,198.52 = 23,381.58/x
  3. Step 3: Cross multiply
    70,128.68x = 105,198.52 × 23,381.58
  4. Step 4: Simplify right side
    70,128.68x = 2,459,707,611.26
  5. Step 5: Solve for x
    x = 2,459,707,611.26/70,128.68
  6. Step 6: Final answer
    x = 35,074.20

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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.