Finding the Fourth Proportional to 151,646.74, 209,271.05 and 83,664.26
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Solution
The fourth proportional to 151,646.74, 209,271.05 and 83,664.26 is: 115,455.88
Step by Step Solution
- Step 1: Write the proportion equation
151,646.74 : 209,271.05 = 83,664.26 : x - Step 2: Convert to fraction form
151,646.74/209,271.05 = 83,664.26/x - Step 3: Cross multiply
151,646.74x = 209,271.05 × 83,664.26 - Step 4: Simplify right side
151,646.74x = 17,508,507,406.81 - Step 5: Solve for x
x = 17,508,507,406.81/151,646.74 - Step 6: Final answer
x = 115,455.88
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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.