Finding the Fourth Proportional to 149,444.06, 206,230.14 and 81,461.63
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Solution
The fourth proportional to 149,444.06, 206,230.14 and 81,461.63 is: 112,415.61
Step by Step Solution
- Step 1: Write the proportion equation
149,444.06 : 206,230.14 = 81,461.63 : x - Step 2: Convert to fraction form
149,444.06/206,230.14 = 81,461.63/x - Step 3: Cross multiply
149,444.06x = 206,230.14 × 81,461.63 - Step 4: Simplify right side
149,444.06x = 16,799,843,875.10 - Step 5: Solve for x
x = 16,799,843,875.10/149,444.06 - Step 6: Final answer
x = 112,415.61
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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.