Finding the Fourth Proportional to 138,650.26, 191,337.36 and 74,988.04
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Solution
The fourth proportional to 138,650.26, 191,337.36 and 74,988.04 is: 103,483.50
Step by Step Solution
- Step 1: Write the proportion equation
138,650.26 : 191,337.36 = 74,988.04 : x - Step 2: Convert to fraction form
138,650.26/191,337.36 = 74,988.04/x - Step 3: Cross multiply
138,650.26x = 191,337.36 × 74,988.04 - Step 4: Simplify right side
138,650.26x = 14,348,013,605.17 - Step 5: Solve for x
x = 14,348,013,605.17/138,650.26 - Step 6: Final answer
x = 103,483.50
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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.