Finding the Fourth Proportional to 102,279.12, 153,439.60 and 43,114.80
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Solution
The fourth proportional to 102,279.12, 153,439.60 and 43,114.80 is: 64,681.02
Step by Step Solution
- Step 1: Write the proportion equation
102,279.12 : 153,439.60 = 43,114.80 : x - Step 2: Convert to fraction form
102,279.12/153,439.60 = 43,114.80/x - Step 3: Cross multiply
102,279.12x = 153,439.60 × 43,114.80 - Step 4: Simplify right side
102,279.12x = 6,615,517,666.08 - Step 5: Solve for x
x = 6,615,517,666.08/102,279.12 - Step 6: Final answer
x = 64,681.02
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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.