Finding the Fourth Proportional to 130,670.99, 180,259.56 and 85,375.49
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Solution
The fourth proportional to 130,670.99, 180,259.56 and 85,375.49 is: 117,774.79
Step by Step Solution
- Step 1: Write the proportion equation
130,670.99 : 180,259.56 = 85,375.49 : x - Step 2: Convert to fraction form
130,670.99/180,259.56 = 85,375.49/x - Step 3: Cross multiply
130,670.99x = 180,259.56 × 85,375.49 - Step 4: Simplify right side
130,670.99x = 15,389,747,360.89 - Step 5: Solve for x
x = 15,389,747,360.89/130,670.99 - Step 6: Final answer
x = 117,774.79
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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.