Finding the Fourth Proportional to 106,976.64, 147,602.88 and 64,536.96
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Solution
The fourth proportional to 106,976.64, 147,602.88 and 64,536.96 is: 89,045.99
Step by Step Solution
- Step 1: Write the proportion equation
106,976.64 : 147,602.88 = 64,536.96 : x - Step 2: Convert to fraction form
106,976.64/147,602.88 = 64,536.96/x - Step 3: Cross multiply
106,976.64x = 147,602.88 × 64,536.96 - Step 4: Simplify right side
106,976.64x = 9,525,841,162.44 - Step 5: Solve for x
x = 9,525,841,162.44/106,976.64 - Step 6: Final answer
x = 89,045.99
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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.