Finding the Fourth Proportional to 88,904.10, 133,356.15 and 84,821.70
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Solution
The fourth proportional to 88,904.10, 133,356.15 and 84,821.70 is: 127,232.55
Step by Step Solution
- Step 1: Write the proportion equation
88,904.10 : 133,356.15 = 84,821.70 : x - Step 2: Convert to fraction form
88,904.10/133,356.15 = 84,821.70/x - Step 3: Cross multiply
88,904.10x = 133,356.15 × 84,821.70 - Step 4: Simplify right side
88,904.10x = 11,311,495,348.46 - Step 5: Solve for x
x = 11,311,495,348.46/88,904.10 - Step 6: Final answer
x = 127,232.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.