Finding the Fourth Proportional to 130,598.74, 195,635.67 and 68,138.02
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Solution
The fourth proportional to 130,598.74, 195,635.67 and 68,138.02 is: 102,070.11
Step by Step Solution
- Step 1: Write the proportion equation
130,598.74 : 195,635.67 = 68,138.02 : x - Step 2: Convert to fraction form
130,598.74/195,635.67 = 68,138.02/x - Step 3: Cross multiply
130,598.74x = 195,635.67 × 68,138.02 - Step 4: Simplify right side
130,598.74x = 13,330,227,195.17 - Step 5: Solve for x
x = 13,330,227,195.17/130,598.74 - Step 6: Final answer
x = 102,070.11
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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.