Home / 126,068.40-189,102.60-113,383.80

Finding the Fourth Proportional to 126,068.40, 189,102.60 and 113,383.80

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Solution

The fourth proportional to 126,068.40, 189,102.60 and 113,383.80 is: 170,075.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,068.40 : 189,102.60 = 113,383.80 : x
  2. Step 2: Convert to fraction form
    126,068.40/189,102.60 = 113,383.80/x
  3. Step 3: Cross multiply
    126,068.40x = 189,102.60 × 113,383.80
  4. Step 4: Simplify right side
    126,068.40x = 21,441,171,377.88
  5. Step 5: Solve for x
    x = 21,441,171,377.88/126,068.40
  6. Step 6: Final answer
    x = 170,075.70

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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.