Finding the Fourth Proportional to 124,129.28, 186,048.11 and 57,428.52
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Solution
The fourth proportional to 124,129.28, 186,048.11 and 57,428.52 is: 86,075.32
Step by Step Solution
- Step 1: Write the proportion equation
124,129.28 : 186,048.11 = 57,428.52 : x - Step 2: Convert to fraction form
124,129.28/186,048.11 = 57,428.52/x - Step 3: Cross multiply
124,129.28x = 186,048.11 × 57,428.52 - Step 4: Simplify right side
124,129.28x = 10,684,467,606.10 - Step 5: Solve for x
x = 10,684,467,606.10/124,129.28 - Step 6: Final answer
x = 86,075.32
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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.