Finding the Fourth Proportional to 141,085.03, 194,699.73 and 77,428.75
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Solution
The fourth proportional to 141,085.03, 194,699.73 and 77,428.75 is: 106,852.99
Step by Step Solution
- Step 1: Write the proportion equation
141,085.03 : 194,699.73 = 77,428.75 : x - Step 2: Convert to fraction form
141,085.03/194,699.73 = 77,428.75/x - Step 3: Cross multiply
141,085.03x = 194,699.73 × 77,428.75 - Step 4: Simplify right side
141,085.03x = 15,075,356,719.24 - Step 5: Solve for x
x = 15,075,356,719.24/141,085.03 - Step 6: Final answer
x = 106,852.99
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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.