Finding the Fourth Proportional to 189,058.74, 260,813.94 and 121,043.04
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Solution
The fourth proportional to 189,058.74, 260,813.94 and 121,043.04 is: 166,983.62
Step by Step Solution
- Step 1: Write the proportion equation
189,058.74 : 260,813.94 = 121,043.04 : x - Step 2: Convert to fraction form
189,058.74/260,813.94 = 121,043.04/x - Step 3: Cross multiply
189,058.74x = 260,813.94 × 121,043.04 - Step 4: Simplify right side
189,058.74x = 31,569,712,171.98 - Step 5: Solve for x
x = 31,569,712,171.98/189,058.74 - Step 6: Final answer
x = 166,983.62
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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.