Home / 112,611.87-155,404.44-70,170.57

Finding the Fourth Proportional to 112,611.87, 155,404.44 and 70,170.57

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Solution

The fourth proportional to 112,611.87, 155,404.44 and 70,170.57 is: 96,835.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,611.87 : 155,404.44 = 70,170.57 : x
  2. Step 2: Convert to fraction form
    112,611.87/155,404.44 = 70,170.57/x
  3. Step 3: Cross multiply
    112,611.87x = 155,404.44 × 70,170.57
  4. Step 4: Simplify right side
    112,611.87x = 10,904,818,135.33
  5. Step 5: Solve for x
    x = 10,904,818,135.33/112,611.87
  6. Step 6: Final answer
    x = 96,835.42

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1.5x scale

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.