Finding the Fourth Proportional to 167,378.11, 251,109.66 and 77,485.63
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Solution
The fourth proportional to 167,378.11, 251,109.66 and 77,485.63 is: 116,248.12
Step by Step Solution
- Step 1: Write the proportion equation
167,378.11 : 251,109.66 = 77,485.63 : x - Step 2: Convert to fraction form
167,378.11/251,109.66 = 77,485.63/x - Step 3: Cross multiply
167,378.11x = 251,109.66 × 77,485.63 - Step 4: Simplify right side
167,378.11x = 19,457,390,204.19 - Step 5: Solve for x
x = 19,457,390,204.19/167,378.11 - Step 6: Final answer
x = 116,248.12
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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.