Finding the Fourth Proportional to 155,170.68, 214,159.86 and 91,515.48
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Solution
The fourth proportional to 155,170.68, 214,159.86 and 91,515.48 is: 126,305.71
Step by Step Solution
- Step 1: Write the proportion equation
155,170.68 : 214,159.86 = 91,515.48 : x - Step 2: Convert to fraction form
155,170.68/214,159.86 = 91,515.48/x - Step 3: Cross multiply
155,170.68x = 214,159.86 × 91,515.48 - Step 4: Simplify right side
155,170.68x = 19,598,942,384.63 - Step 5: Solve for x
x = 19,598,942,384.63/155,170.68 - Step 6: Final answer
x = 126,305.71
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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.