Finding the Fourth Proportional to 99,121.49, 136,599.10 and 97,299.80
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Solution
The fourth proportional to 99,121.49, 136,599.10 and 97,299.80 is: 134,088.63
Step by Step Solution
- Step 1: Write the proportion equation
99,121.49 : 136,599.10 = 97,299.80 : x - Step 2: Convert to fraction form
99,121.49/136,599.10 = 97,299.80/x - Step 3: Cross multiply
99,121.49x = 136,599.10 × 97,299.80 - Step 4: Simplify right side
99,121.49x = 13,291,064,183.94 - Step 5: Solve for x
x = 13,291,064,183.94/99,121.49 - Step 6: Final answer
x = 134,088.63
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1.5x scale
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.