Finding the Fourth Proportional to 151,908.23, 209,633.35 and 84,840.23
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Solution
The fourth proportional to 151,908.23, 209,633.35 and 84,840.23 is: 117,079.51
Step by Step Solution
- Step 1: Write the proportion equation
151,908.23 : 209,633.35 = 84,840.23 : x - Step 2: Convert to fraction form
151,908.23/209,633.35 = 84,840.23/x - Step 3: Cross multiply
151,908.23x = 209,633.35 × 84,840.23 - Step 4: Simplify right side
151,908.23x = 17,785,341,629.67 - Step 5: Solve for x
x = 17,785,341,629.67/151,908.23 - Step 6: Final answer
x = 117,079.51
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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.