Finding the Fourth Proportional to 88,197.12, 121,356.36 and 86,097.60
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Solution
The fourth proportional to 88,197.12, 121,356.36 and 86,097.60 is: 118,467.49
Step by Step Solution
- Step 1: Write the proportion equation
88,197.12 : 121,356.36 = 86,097.60 : x - Step 2: Convert to fraction form
88,197.12/121,356.36 = 86,097.60/x - Step 3: Cross multiply
88,197.12x = 121,356.36 × 86,097.60 - Step 4: Simplify right side
88,197.12x = 10,448,491,340.74 - Step 5: Solve for x
x = 10,448,491,340.74/88,197.12 - Step 6: Final answer
x = 118,467.49
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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.