Finding the Fourth Proportional to 92,125.71, 138,188.09 and 79,607.70
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Solution
The fourth proportional to 92,125.71, 138,188.09 and 79,607.70 is: 119,411.14
Step by Step Solution
- Step 1: Write the proportion equation
92,125.71 : 138,188.09 = 79,607.70 : x - Step 2: Convert to fraction form
92,125.71/138,188.09 = 79,607.70/x - Step 3: Cross multiply
92,125.71x = 138,188.09 × 79,607.70 - Step 4: Simplify right side
92,125.71x = 11,000,836,211.31 - Step 5: Solve for x
x = 11,000,836,211.31/92,125.71 - Step 6: Final answer
x = 119,411.14
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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.