Finding the Fourth Proportional to 102,423.57, 153,657.91 and 31,346.75
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Solution
The fourth proportional to 102,423.57, 153,657.91 and 31,346.75 is: 47,027.03
Step by Step Solution
- Step 1: Write the proportion equation
102,423.57 : 153,657.91 = 31,346.75 : x - Step 2: Convert to fraction form
102,423.57/153,657.91 = 31,346.75/x - Step 3: Cross multiply
102,423.57x = 153,657.91 × 31,346.75 - Step 4: Simplify right side
102,423.57x = 4,816,676,090.29 - Step 5: Solve for x
x = 4,816,676,090.29/102,423.57 - Step 6: Final answer
x = 47,027.03
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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.