Finding the Fourth Proportional to 127,854.36, 191,781.68 and 69,063.84
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Solution
The fourth proportional to 127,854.36, 191,781.68 and 69,063.84 is: 103,595.83
Step by Step Solution
- Step 1: Write the proportion equation
127,854.36 : 191,781.68 = 69,063.84 : x - Step 2: Convert to fraction form
127,854.36/191,781.68 = 69,063.84/x - Step 3: Cross multiply
127,854.36x = 191,781.68 × 69,063.84 - Step 4: Simplify right side
127,854.36x = 13,245,178,917.13 - Step 5: Solve for x
x = 13,245,178,917.13/127,854.36 - Step 6: Final answer
x = 103,595.83
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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.