Finding the Fourth Proportional to 154,188.30, 212,768.11 and 93,750.55
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Solution
The fourth proportional to 154,188.30, 212,768.11 and 93,750.55 is: 129,368.62
Step by Step Solution
- Step 1: Write the proportion equation
154,188.30 : 212,768.11 = 93,750.55 : x - Step 2: Convert to fraction form
154,188.30/212,768.11 = 93,750.55/x - Step 3: Cross multiply
154,188.30x = 212,768.11 × 93,750.55 - Step 4: Simplify right side
154,188.30x = 19,947,127,334.96 - Step 5: Solve for x
x = 19,947,127,334.96/154,188.30 - Step 6: Final answer
x = 129,368.62
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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.