Finding the Fourth Proportional to 124,431.26, 171,660.53 and 84,130.25
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Solution
The fourth proportional to 124,431.26, 171,660.53 and 84,130.25 is: 116,062.82
Step by Step Solution
- Step 1: Write the proportion equation
124,431.26 : 171,660.53 = 84,130.25 : x - Step 2: Convert to fraction form
124,431.26/171,660.53 = 84,130.25/x - Step 3: Cross multiply
124,431.26x = 171,660.53 × 84,130.25 - Step 4: Simplify right side
124,431.26x = 14,441,842,656.06 - Step 5: Solve for x
x = 14,441,842,656.06/124,431.26 - Step 6: Final answer
x = 116,062.82
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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.