Finding the Fourth Proportional to 143,028.36, 197,415.42 and 97,724.66
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Solution
The fourth proportional to 143,028.36, 197,415.42 and 97,724.66 is: 134,884.81
Step by Step Solution
- Step 1: Write the proportion equation
143,028.36 : 197,415.42 = 97,724.66 : x - Step 2: Convert to fraction form
143,028.36/197,415.42 = 97,724.66/x - Step 3: Cross multiply
143,028.36x = 197,415.42 × 97,724.66 - Step 4: Simplify right side
143,028.36x = 19,292,353,811.18 - Step 5: Solve for x
x = 19,292,353,811.18/143,028.36 - Step 6: Final answer
x = 134,884.81
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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.