Finding the Fourth Proportional to 124,663.68, 172,035.36 and 68,075.28
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Solution
The fourth proportional to 124,663.68, 172,035.36 and 68,075.28 is: 93,943.60
Step by Step Solution
- Step 1: Write the proportion equation
124,663.68 : 172,035.36 = 68,075.28 : x - Step 2: Convert to fraction form
124,663.68/172,035.36 = 68,075.28/x - Step 3: Cross multiply
124,663.68x = 172,035.36 × 68,075.28 - Step 4: Simplify right side
124,663.68x = 11,711,355,301.90 - Step 5: Solve for x
x = 11,711,355,301.90/124,663.68 - Step 6: Final answer
x = 93,943.60
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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.