Finding the Fourth Proportional to 99,000.23, 136,619.73 and 53,677.76
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Solution
The fourth proportional to 99,000.23, 136,619.73 and 53,677.76 is: 74,074.99
Step by Step Solution
- Step 1: Write the proportion equation
99,000.23 : 136,619.73 = 53,677.76 : x - Step 2: Convert to fraction form
99,000.23/136,619.73 = 53,677.76/x - Step 3: Cross multiply
99,000.23x = 136,619.73 × 53,677.76 - Step 4: Simplify right side
99,000.23x = 7,333,440,395.11 - Step 5: Solve for x
x = 7,333,440,395.11/99,000.23 - Step 6: Final answer
x = 74,074.99
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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.