Home / 126,048.09-189,085.97-51,157.35

Finding the Fourth Proportional to 126,048.09, 189,085.97 and 51,157.35

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Solution

The fourth proportional to 126,048.09, 189,085.97 and 51,157.35 is: 76,741.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,048.09 : 189,085.97 = 51,157.35 : x
  2. Step 2: Convert to fraction form
    126,048.09/189,085.97 = 51,157.35/x
  3. Step 3: Cross multiply
    126,048.09x = 189,085.97 × 51,157.35
  4. Step 4: Simplify right side
    126,048.09x = 9,673,136,599.59
  5. Step 5: Solve for x
    x = 9,673,136,599.59/126,048.09
  6. Step 6: Final answer
    x = 76,741.64

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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.