Finding the Fourth Proportional to 125,394.34, 187,770.36 and 69,171.95
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Solution
The fourth proportional to 125,394.34, 187,770.36 and 69,171.95 is: 103,580.77
Step by Step Solution
- Step 1: Write the proportion equation
125,394.34 : 187,770.36 = 69,171.95 : x - Step 2: Convert to fraction form
125,394.34/187,770.36 = 69,171.95/x - Step 3: Cross multiply
125,394.34x = 187,770.36 × 69,171.95 - Step 4: Simplify right side
125,394.34x = 12,988,441,953.40 - Step 5: Solve for x
x = 12,988,441,953.40/125,394.34 - Step 6: Final answer
x = 103,580.77
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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.