Finding the Fourth Proportional to 135,055.60, 202,291.80 and 87,816.40
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Solution
The fourth proportional to 135,055.60, 202,291.80 and 87,816.40 is: 131,534.99
Step by Step Solution
- Step 1: Write the proportion equation
135,055.60 : 202,291.80 = 87,816.40 : x - Step 2: Convert to fraction form
135,055.60/202,291.80 = 87,816.40/x - Step 3: Cross multiply
135,055.60x = 202,291.80 × 87,816.40 - Step 4: Simplify right side
135,055.60x = 17,764,537,625.52 - Step 5: Solve for x
x = 17,764,537,625.52/135,055.60 - Step 6: Final answer
x = 131,534.99
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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.