Finding the Fourth Proportional to 153,754.53, 212,176.44 and 90,134.70
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Solution
The fourth proportional to 153,754.53, 212,176.44 and 90,134.70 is: 124,383.07
Step by Step Solution
- Step 1: Write the proportion equation
153,754.53 : 212,176.44 = 90,134.70 : x - Step 2: Convert to fraction form
153,754.53/212,176.44 = 90,134.70/x - Step 3: Cross multiply
153,754.53x = 212,176.44 × 90,134.70 - Step 4: Simplify right side
153,754.53x = 19,124,459,766.47 - Step 5: Solve for x
x = 19,124,459,766.47/153,754.53 - Step 6: Final answer
x = 124,383.07
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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.