Home / 126,486.54-189,762.60-67,273.50

Finding the Fourth Proportional to 126,486.54, 189,762.60 and 67,273.50

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Solution

The fourth proportional to 126,486.54, 189,762.60 and 67,273.50 is: 100,927.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,486.54 : 189,762.60 = 67,273.50 : x
  2. Step 2: Convert to fraction form
    126,486.54/189,762.60 = 67,273.50/x
  3. Step 3: Cross multiply
    126,486.54x = 189,762.60 × 67,273.50
  4. Step 4: Simplify right side
    126,486.54x = 12,765,994,271.10
  5. Step 5: Solve for x
    x = 12,765,994,271.10/126,486.54
  6. Step 6: Final answer
    x = 100,927.69

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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.