Finding the Fourth Proportional to 93,202.19, 128,694.93 and 75,977.29
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Solution
The fourth proportional to 93,202.19, 128,694.93 and 75,977.29 is: 104,910.53
Step by Step Solution
- Step 1: Write the proportion equation
93,202.19 : 128,694.93 = 75,977.29 : x - Step 2: Convert to fraction form
93,202.19/128,694.93 = 75,977.29/x - Step 3: Cross multiply
93,202.19x = 128,694.93 × 75,977.29 - Step 4: Simplify right side
93,202.19x = 9,777,891,894.09 - Step 5: Solve for x
x = 9,777,891,894.09/93,202.19 - Step 6: Final answer
x = 104,910.53
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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.