Finding the Fourth Proportional to 160,497.68, 221,483.28 and 87,900.60
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Solution
The fourth proportional to 160,497.68, 221,483.28 and 87,900.60 is: 121,300.90
Step by Step Solution
- Step 1: Write the proportion equation
160,497.68 : 221,483.28 = 87,900.60 : x - Step 2: Convert to fraction form
160,497.68/221,483.28 = 87,900.60/x - Step 3: Cross multiply
160,497.68x = 221,483.28 × 87,900.60 - Step 4: Simplify right side
160,497.68x = 19,468,513,201.97 - Step 5: Solve for x
x = 19,468,513,201.97/160,497.68 - Step 6: Final answer
x = 121,300.90
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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.