Finding the Fourth Proportional to 122,798.16, 169,449.48 and 69,082.02
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Solution
The fourth proportional to 122,798.16, 169,449.48 and 69,082.02 is: 95,326.45
Step by Step Solution
- Step 1: Write the proportion equation
122,798.16 : 169,449.48 = 69,082.02 : x - Step 2: Convert to fraction form
122,798.16/169,449.48 = 69,082.02/x - Step 3: Cross multiply
122,798.16x = 169,449.48 × 69,082.02 - Step 4: Simplify right side
122,798.16x = 11,705,912,366.35 - Step 5: Solve for x
x = 11,705,912,366.35/122,798.16 - Step 6: Final answer
x = 95,326.45
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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.