Finding the Fourth Proportional to 128,852.24, 177,812.66 and 70,708.80
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Solution
The fourth proportional to 128,852.24, 177,812.66 and 70,708.80 is: 97,576.26
Step by Step Solution
- Step 1: Write the proportion equation
128,852.24 : 177,812.66 = 70,708.80 : x - Step 2: Convert to fraction form
128,852.24/177,812.66 = 70,708.80/x - Step 3: Cross multiply
128,852.24x = 177,812.66 × 70,708.80 - Step 4: Simplify right side
128,852.24x = 12,572,919,813.41 - Step 5: Solve for x
x = 12,572,919,813.41/128,852.24 - Step 6: Final answer
x = 97,576.26
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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.