Finding the Fourth Proportional to 143,386.36, 197,884.26 and 86,027.84
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Solution
The fourth proportional to 143,386.36, 197,884.26 and 86,027.84 is: 118,725.07
Step by Step Solution
- Step 1: Write the proportion equation
143,386.36 : 197,884.26 = 86,027.84 : x - Step 2: Convert to fraction form
143,386.36/197,884.26 = 86,027.84/x - Step 3: Cross multiply
143,386.36x = 197,884.26 × 86,027.84 - Step 4: Simplify right side
143,386.36x = 17,023,555,457.80 - Step 5: Solve for x
x = 17,023,555,457.80/143,386.36 - Step 6: Final answer
x = 118,725.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.