Home / 112,039.40-168,059.10-111,383.30

Finding the Fourth Proportional to 112,039.40, 168,059.10 and 111,383.30

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Solution

The fourth proportional to 112,039.40, 168,059.10 and 111,383.30 is: 167,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,039.40 : 168,059.10 = 111,383.30 : x
  2. Step 2: Convert to fraction form
    112,039.40/168,059.10 = 111,383.30/x
  3. Step 3: Cross multiply
    112,039.40x = 168,059.10 × 111,383.30
  4. Step 4: Simplify right side
    112,039.40x = 18,718,977,153.03
  5. Step 5: Solve for x
    x = 18,718,977,153.03/112,039.40
  6. Step 6: Final answer
    x = 167,074.95

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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.