Home / 126,153.60-189,230.38-51,273.45

Finding the Fourth Proportional to 126,153.60, 189,230.38 and 51,273.45

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Solution

The fourth proportional to 126,153.60, 189,230.38 and 51,273.45 is: 76,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,153.60 : 189,230.38 = 51,273.45 : x
  2. Step 2: Convert to fraction form
    126,153.60/189,230.38 = 51,273.45/x
  3. Step 3: Cross multiply
    126,153.60x = 189,230.38 × 51,273.45
  4. Step 4: Simplify right side
    126,153.60x = 9,702,494,427.41
  5. Step 5: Solve for x
    x = 9,702,494,427.41/126,153.60
  6. Step 6: Final answer
    x = 76,910.17

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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.