Finding the Fourth Proportional to 114.58, 158.06 and 73.09
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Solution
The fourth proportional to 114.58, 158.06 and 73.09 is: 100.82
Step by Step Solution
- Step 1: Write the proportion equation
114.58 : 158.06 = 73.09 : x - Step 2: Convert to fraction form
114.58/158.06 = 73.09/x - Step 3: Cross multiply
114.58x = 158.06 × 73.09 - Step 4: Simplify right side
114.58x = 11,552.40 - Step 5: Solve for x
x = 11,552.40/114.58 - Step 6: Final answer
x = 100.82
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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.