Finding the Fourth Proportional to 102,525.12, 141,475.68 and 57,199.68
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Solution
The fourth proportional to 102,525.12, 141,475.68 and 57,199.68 is: 78,930.55
Step by Step Solution
- Step 1: Write the proportion equation
102,525.12 : 141,475.68 = 57,199.68 : x - Step 2: Convert to fraction form
102,525.12/141,475.68 = 57,199.68/x - Step 3: Cross multiply
102,525.12x = 141,475.68 × 57,199.68 - Step 4: Simplify right side
102,525.12x = 8,092,363,623.78 - Step 5: Solve for x
x = 8,092,363,623.78/102,525.12 - Step 6: Final answer
x = 78,930.55
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1.5x scale
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.