Finding the Fourth Proportional to 128,907.52, 177,925.08 and 88,088.17
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Solution
The fourth proportional to 128,907.52, 177,925.08 and 88,088.17 is: 121,584.02
Step by Step Solution
- Step 1: Write the proportion equation
128,907.52 : 177,925.08 = 88,088.17 : x - Step 2: Convert to fraction form
128,907.52/177,925.08 = 88,088.17/x - Step 3: Cross multiply
128,907.52x = 177,925.08 × 88,088.17 - Step 4: Simplify right side
128,907.52x = 15,673,094,694.30 - Step 5: Solve for x
x = 15,673,094,694.30/128,907.52 - Step 6: Final answer
x = 121,584.02
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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.