Finding the Fourth Proportional to 130,474.05, 180,051.14 and 76,762.53
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Solution
The fourth proportional to 130,474.05, 180,051.14 and 76,762.53 is: 105,930.50
Step by Step Solution
- Step 1: Write the proportion equation
130,474.05 : 180,051.14 = 76,762.53 : x - Step 2: Convert to fraction form
130,474.05/180,051.14 = 76,762.53/x - Step 3: Cross multiply
130,474.05x = 180,051.14 × 76,762.53 - Step 4: Simplify right side
130,474.05x = 13,821,181,227.69 - Step 5: Solve for x
x = 13,821,181,227.69/130,474.05 - Step 6: Final answer
x = 105,930.50
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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.