Home / 126,152.26-189,228.38-51,313.12

Finding the Fourth Proportional to 126,152.26, 189,228.38 and 51,313.12

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Solution

The fourth proportional to 126,152.26, 189,228.38 and 51,313.12 is: 76,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,152.26 : 189,228.38 = 51,313.12 : x
  2. Step 2: Convert to fraction form
    126,152.26/189,228.38 = 51,313.12/x
  3. Step 3: Cross multiply
    126,152.26x = 189,228.38 × 51,313.12
  4. Step 4: Simplify right side
    126,152.26x = 9,709,898,570.35
  5. Step 5: Solve for x
    x = 9,709,898,570.35/126,152.26
  6. Step 6: Final answer
    x = 76,969.68

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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.