Finding the Fourth Proportional to 130,670.68, 195,850.50 and 91,013.08
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Solution
The fourth proportional to 130,670.68, 195,850.50 and 91,013.08 is: 136,411.30
Step by Step Solution
- Step 1: Write the proportion equation
130,670.68 : 195,850.50 = 91,013.08 : x - Step 2: Convert to fraction form
130,670.68/195,850.50 = 91,013.08/x - Step 3: Cross multiply
130,670.68x = 195,850.50 × 91,013.08 - Step 4: Simplify right side
130,670.68x = 17,824,957,224.54 - Step 5: Solve for x
x = 17,824,957,224.54/130,670.68 - Step 6: Final answer
x = 136,411.30
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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.