Finding the Fourth Proportional to 130.99, 180.35 and 117.58
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Solution
The fourth proportional to 130.99, 180.35 and 117.58 is: 161.88
Step by Step Solution
- Step 1: Write the proportion equation
130.99 : 180.35 = 117.58 : x - Step 2: Convert to fraction form
130.99/180.35 = 117.58/x - Step 3: Cross multiply
130.99x = 180.35 × 117.58 - Step 4: Simplify right side
130.99x = 21,204.97 - Step 5: Solve for x
x = 21,204.97/130.99 - Step 6: Final answer
x = 161.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.