Finding the Fourth Proportional to 130,743.68, 196,115.64 and 91,377.68
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Solution
The fourth proportional to 130,743.68, 196,115.64 and 91,377.68 is: 137,066.60
Step by Step Solution
- Step 1: Write the proportion equation
130,743.68 : 196,115.64 = 91,377.68 : x - Step 2: Convert to fraction form
130,743.68/196,115.64 = 91,377.68/x - Step 3: Cross multiply
130,743.68x = 196,115.64 × 91,377.68 - Step 4: Simplify right side
130,743.68x = 17,920,592,194.92 - Step 5: Solve for x
x = 17,920,592,194.92/130,743.68 - Step 6: Final answer
x = 137,066.60
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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.