Home / 112,273.61-154,933.72-66,928.21

Finding the Fourth Proportional to 112,273.61, 154,933.72 and 66,928.21

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Solution

The fourth proportional to 112,273.61, 154,933.72 and 66,928.21 is: 92,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,273.61 : 154,933.72 = 66,928.21 : x
  2. Step 2: Convert to fraction form
    112,273.61/154,933.72 = 66,928.21/x
  3. Step 3: Cross multiply
    112,273.61x = 154,933.72 × 66,928.21
  4. Step 4: Simplify right side
    112,273.61x = 10,369,435,993.59
  5. Step 5: Solve for x
    x = 10,369,435,993.59/112,273.61
  6. Step 6: Final answer
    x = 92,358.63

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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.