Finding the Fourth Proportional to 125,742.84, 188,497.08 and 86,318.52
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Solution
The fourth proportional to 125,742.84, 188,497.08 and 86,318.52 is: 129,397.34
Step by Step Solution
- Step 1: Write the proportion equation
125,742.84 : 188,497.08 = 86,318.52 : x - Step 2: Convert to fraction form
125,742.84/188,497.08 = 86,318.52/x - Step 3: Cross multiply
125,742.84x = 188,497.08 × 86,318.52 - Step 4: Simplify right side
125,742.84x = 16,270,788,969.92 - Step 5: Solve for x
x = 16,270,788,969.92/125,742.84 - Step 6: Final answer
x = 129,397.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.