Finding the Fourth Proportional to 100.08, 149.76 and 59.49
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Solution
The fourth proportional to 100.08, 149.76 and 59.49 is: 89.02
Step by Step Solution
- Step 1: Write the proportion equation
100.08 : 149.76 = 59.49 : x - Step 2: Convert to fraction form
100.08/149.76 = 59.49/x - Step 3: Cross multiply
100.08x = 149.76 × 59.49 - Step 4: Simplify right side
100.08x = 8,909.22 - Step 5: Solve for x
x = 8,909.22/100.08 - Step 6: Final answer
x = 89.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.