Finding the Fourth Proportional to 99,110.93, 136,774.08 and 53,789.31
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Solution
The fourth proportional to 99,110.93, 136,774.08 and 53,789.31 is: 74,229.79
Step by Step Solution
- Step 1: Write the proportion equation
99,110.93 : 136,774.08 = 53,789.31 : x - Step 2: Convert to fraction form
99,110.93/136,774.08 = 53,789.31/x - Step 3: Cross multiply
99,110.93x = 136,774.08 × 53,789.31 - Step 4: Simplify right side
99,110.93x = 7,356,983,389.08 - Step 5: Solve for x
x = 7,356,983,389.08/99,110.93 - Step 6: Final answer
x = 74,229.79
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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.