Finding the Fourth Proportional to 100,055.70, 149,719.05 and 73,811.70
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Solution
The fourth proportional to 100,055.70, 149,719.05 and 73,811.70 is: 110,448.66
Step by Step Solution
- Step 1: Write the proportion equation
100,055.70 : 149,719.05 = 73,811.70 : x - Step 2: Convert to fraction form
100,055.70/149,719.05 = 73,811.70/x - Step 3: Cross multiply
100,055.70x = 149,719.05 × 73,811.70 - Step 4: Simplify right side
100,055.70x = 11,051,017,602.89 - Step 5: Solve for x
x = 11,051,017,602.89/100,055.70 - Step 6: Final answer
x = 110,448.66
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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.