Finding the Fourth Proportional to 147,689.64, 203,809.09 and 84,026.07
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Solution
The fourth proportional to 147,689.64, 203,809.09 and 84,026.07 is: 115,954.49
Step by Step Solution
- Step 1: Write the proportion equation
147,689.64 : 203,809.09 = 84,026.07 : x - Step 2: Convert to fraction form
147,689.64/203,809.09 = 84,026.07/x - Step 3: Cross multiply
147,689.64x = 203,809.09 × 84,026.07 - Step 4: Simplify right side
147,689.64x = 17,125,276,862.98 - Step 5: Solve for x
x = 17,125,276,862.98/147,689.64 - Step 6: Final answer
x = 115,954.49
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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.