Finding the Fourth Proportional to 107,121.84, 147,829.96 and 58,720.53
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Solution
The fourth proportional to 107,121.84, 147,829.96 and 58,720.53 is: 81,035.33
Step by Step Solution
- Step 1: Write the proportion equation
107,121.84 : 147,829.96 = 58,720.53 : x - Step 2: Convert to fraction form
107,121.84/147,829.96 = 58,720.53/x - Step 3: Cross multiply
107,121.84x = 147,829.96 × 58,720.53 - Step 4: Simplify right side
107,121.84x = 8,680,653,601.08 - Step 5: Solve for x
x = 8,680,653,601.08/107,121.84 - Step 6: Final answer
x = 81,035.33
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1.5x scale
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.