Finding the Fourth Proportional to 130,487.36, 180,064.03 and 76,761.99
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Solution
The fourth proportional to 130,487.36, 180,064.03 and 76,761.99 is: 105,926.53
Step by Step Solution
- Step 1: Write the proportion equation
130,487.36 : 180,064.03 = 76,761.99 : x - Step 2: Convert to fraction form
130,487.36/180,064.03 = 76,761.99/x - Step 3: Cross multiply
130,487.36x = 180,064.03 × 76,761.99 - Step 4: Simplify right side
130,487.36x = 13,822,073,151.62 - Step 5: Solve for x
x = 13,822,073,151.62/130,487.36 - Step 6: Final answer
x = 105,926.53
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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.