Finding the Fourth Proportional to 154,091.19, 231,210.09 and 106,779.09
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Solution
The fourth proportional to 154,091.19, 231,210.09 and 106,779.09 is: 160,219.43
Step by Step Solution
- Step 1: Write the proportion equation
154,091.19 : 231,210.09 = 106,779.09 : x - Step 2: Convert to fraction form
154,091.19/231,210.09 = 106,779.09/x - Step 3: Cross multiply
154,091.19x = 231,210.09 × 106,779.09 - Step 4: Simplify right side
154,091.19x = 24,688,403,009.02 - Step 5: Solve for x
x = 24,688,403,009.02/154,091.19 - Step 6: Final answer
x = 160,219.43
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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.