Finding the Fourth Proportional to 151,305.84, 208,697.76 and 137,823.12
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Solution
The fourth proportional to 151,305.84, 208,697.76 and 137,823.12 is: 190,100.90
Step by Step Solution
- Step 1: Write the proportion equation
151,305.84 : 208,697.76 = 137,823.12 : x - Step 2: Convert to fraction form
151,305.84/208,697.76 = 137,823.12/x - Step 3: Cross multiply
151,305.84x = 208,697.76 × 137,823.12 - Step 4: Simplify right side
151,305.84x = 28,763,376,420.21 - Step 5: Solve for x
x = 28,763,376,420.21/151,305.84 - Step 6: Final answer
x = 190,100.90
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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.