Finding the Fourth Proportional to 162,417.12, 243,748.80 and 68,988.48
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Solution
The fourth proportional to 162,417.12, 243,748.80 and 68,988.48 is: 103,535.02
Step by Step Solution
- Step 1: Write the proportion equation
162,417.12 : 243,748.80 = 68,988.48 : x - Step 2: Convert to fraction form
162,417.12/243,748.80 = 68,988.48/x - Step 3: Cross multiply
162,417.12x = 243,748.80 × 68,988.48 - Step 4: Simplify right side
162,417.12x = 16,815,859,213.82 - Step 5: Solve for x
x = 16,815,859,213.82/162,417.12 - Step 6: Final answer
x = 103,535.02
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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.