Finding the Fourth Proportional to 99,201.14, 136,898.57 and 53,879.55
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Solution
The fourth proportional to 99,201.14, 136,898.57 and 53,879.55 is: 74,354.32
Step by Step Solution
- Step 1: Write the proportion equation
99,201.14 : 136,898.57 = 53,879.55 : x - Step 2: Convert to fraction form
99,201.14/136,898.57 = 53,879.55/x - Step 3: Cross multiply
99,201.14x = 136,898.57 × 53,879.55 - Step 4: Simplify right side
99,201.14x = 7,376,032,968.57 - Step 5: Solve for x
x = 7,376,032,968.57/99,201.14 - Step 6: Final answer
x = 74,354.32
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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.