Finding the Fourth Proportional to 110.51, 152.56 and 86.07
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Solution
The fourth proportional to 110.51, 152.56 and 86.07 is: 118.82
Step by Step Solution
- Step 1: Write the proportion equation
110.51 : 152.56 = 86.07 : x - Step 2: Convert to fraction form
110.51/152.56 = 86.07/x - Step 3: Cross multiply
110.51x = 152.56 × 86.07 - Step 4: Simplify right side
110.51x = 13,130.41 - Step 5: Solve for x
x = 13,130.41/110.51 - Step 6: Final answer
x = 118.82
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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.