Finding the Fourth Proportional to 97,909.20, 135,051.44 and 67,267.68
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Solution
The fourth proportional to 97,909.20, 135,051.44 and 67,267.68 is: 92,785.94
Step by Step Solution
- Step 1: Write the proportion equation
97,909.20 : 135,051.44 = 67,267.68 : x - Step 2: Convert to fraction form
97,909.20/135,051.44 = 67,267.68/x - Step 3: Cross multiply
97,909.20x = 135,051.44 × 67,267.68 - Step 4: Simplify right side
97,909.20x = 9,084,597,049.46 - Step 5: Solve for x
x = 9,084,597,049.46/97,909.20 - Step 6: Final answer
x = 92,785.94
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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.