Finding the Fourth Proportional to 122,782.14, 169,391.38 and 69,054.84
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Solution
The fourth proportional to 122,782.14, 169,391.38 and 69,054.84 is: 95,268.70
Step by Step Solution
- Step 1: Write the proportion equation
122,782.14 : 169,391.38 = 69,054.84 : x - Step 2: Convert to fraction form
122,782.14/169,391.38 = 69,054.84/x - Step 3: Cross multiply
122,782.14x = 169,391.38 × 69,054.84 - Step 4: Simplify right side
122,782.14x = 11,697,294,643.28 - Step 5: Solve for x
x = 11,697,294,643.28/122,782.14 - Step 6: Final answer
x = 95,268.70
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1.5x scale
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.