Home / 112,015.40-168,023.10-111,237.80

Finding the Fourth Proportional to 112,015.40, 168,023.10 and 111,237.80

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Solution

The fourth proportional to 112,015.40, 168,023.10 and 111,237.80 is: 166,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,015.40 : 168,023.10 = 111,237.80 : x
  2. Step 2: Convert to fraction form
    112,015.40/168,023.10 = 111,237.80/x
  3. Step 3: Cross multiply
    112,015.40x = 168,023.10 × 111,237.80
  4. Step 4: Simplify right side
    112,015.40x = 18,690,519,993.18
  5. Step 5: Solve for x
    x = 18,690,519,993.18/112,015.40
  6. Step 6: Final answer
    x = 166,856.70

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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.