Finding the Fourth Proportional to 150,652.47, 207,891.45 and 86,128.68
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Solution
The fourth proportional to 150,652.47, 207,891.45 and 86,128.68 is: 118,852.46
Step by Step Solution
- Step 1: Write the proportion equation
150,652.47 : 207,891.45 = 86,128.68 : x - Step 2: Convert to fraction form
150,652.47/207,891.45 = 86,128.68/x - Step 3: Cross multiply
150,652.47x = 207,891.45 × 86,128.68 - Step 4: Simplify right side
150,652.47x = 17,905,416,171.79 - Step 5: Solve for x
x = 17,905,416,171.79/150,652.47 - Step 6: Final answer
x = 118,852.46
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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.