Finding the Fourth Proportional to 154,101.16, 212,517.28 and 118,292.68
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Solution
The fourth proportional to 154,101.16, 212,517.28 and 118,292.68 is: 163,134.65
Step by Step Solution
- Step 1: Write the proportion equation
154,101.16 : 212,517.28 = 118,292.68 : x - Step 2: Convert to fraction form
154,101.16/212,517.28 = 118,292.68/x - Step 3: Cross multiply
154,101.16x = 212,517.28 × 118,292.68 - Step 4: Simplify right side
154,101.16x = 25,139,238,597.51 - Step 5: Solve for x
x = 25,139,238,597.51/154,101.16 - Step 6: Final answer
x = 163,134.65
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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.