Finding the Fourth Proportional to 149,534.56, 206,355.12 and 81,552.08
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Solution
The fourth proportional to 149,534.56, 206,355.12 and 81,552.08 is: 112,540.47
Step by Step Solution
- Step 1: Write the proportion equation
149,534.56 : 206,355.12 = 81,552.08 : x - Step 2: Convert to fraction form
149,534.56/206,355.12 = 81,552.08/x - Step 3: Cross multiply
149,534.56x = 206,355.12 × 81,552.08 - Step 4: Simplify right side
149,534.56x = 16,828,689,254.65 - Step 5: Solve for x
x = 16,828,689,254.65/149,534.56 - Step 6: Final answer
x = 112,540.47
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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.