Finding the Fourth Proportional to 102,346.80, 153,294.18 and 66,859.08
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Solution
The fourth proportional to 102,346.80, 153,294.18 and 66,859.08 is: 100,140.97
Step by Step Solution
- Step 1: Write the proportion equation
102,346.80 : 153,294.18 = 66,859.08 : x - Step 2: Convert to fraction form
102,346.80/153,294.18 = 66,859.08/x - Step 3: Cross multiply
102,346.80x = 153,294.18 × 66,859.08 - Step 4: Simplify right side
102,346.80x = 10,249,107,844.15 - Step 5: Solve for x
x = 10,249,107,844.15/102,346.80 - Step 6: Final answer
x = 100,140.97
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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.