Finding the Fourth Proportional to 147,435.19, 203,464.88 and 83,775.67
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Solution
The fourth proportional to 147,435.19, 203,464.88 and 83,775.67 is: 115,612.88
Step by Step Solution
- Step 1: Write the proportion equation
147,435.19 : 203,464.88 = 83,775.67 : x - Step 2: Convert to fraction form
147,435.19/203,464.88 = 83,775.67/x - Step 3: Cross multiply
147,435.19x = 203,464.88 × 83,775.67 - Step 4: Simplify right side
147,435.19x = 17,045,406,030.09 - Step 5: Solve for x
x = 17,045,406,030.09/147,435.19 - Step 6: Final answer
x = 115,612.88
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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.