Finding the Fourth Proportional to 137,018.99, 189,062.02 and 76,570.31
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Solution
The fourth proportional to 137,018.99, 189,062.02 and 76,570.31 is: 105,653.51
Step by Step Solution
- Step 1: Write the proportion equation
137,018.99 : 189,062.02 = 76,570.31 : x - Step 2: Convert to fraction form
137,018.99/189,062.02 = 76,570.31/x - Step 3: Cross multiply
137,018.99x = 189,062.02 × 76,570.31 - Step 4: Simplify right side
137,018.99x = 14,476,537,480.63 - Step 5: Solve for x
x = 14,476,537,480.63/137,018.99 - Step 6: Final answer
x = 105,653.51
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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.