Home / 109,741.20-164,611.80-30,868.80

Finding the Fourth Proportional to 109,741.20, 164,611.80 and 30,868.80

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Solution

The fourth proportional to 109,741.20, 164,611.80 and 30,868.80 is: 46,303.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,741.20 : 164,611.80 = 30,868.80 : x
  2. Step 2: Convert to fraction form
    109,741.20/164,611.80 = 30,868.80/x
  3. Step 3: Cross multiply
    109,741.20x = 164,611.80 × 30,868.80
  4. Step 4: Simplify right side
    109,741.20x = 5,081,368,731.84
  5. Step 5: Solve for x
    x = 5,081,368,731.84/109,741.20
  6. Step 6: Final answer
    x = 46,303.20

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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.