Finding the Fourth Proportional to 124,473.48, 171,724.50 and 76,643.88
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Solution
The fourth proportional to 124,473.48, 171,724.50 and 76,643.88 is: 105,738.44
Step by Step Solution
- Step 1: Write the proportion equation
124,473.48 : 171,724.50 = 76,643.88 : x - Step 2: Convert to fraction form
124,473.48/171,724.50 = 76,643.88/x - Step 3: Cross multiply
124,473.48x = 171,724.50 × 76,643.88 - Step 4: Simplify right side
124,473.48x = 13,161,631,971.06 - Step 5: Solve for x
x = 13,161,631,971.06/124,473.48 - Step 6: Final answer
x = 105,738.44
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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.