Finding the Fourth Proportional to 138,750.24, 191,475.92 and 75,088.03
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Solution
The fourth proportional to 138,750.24, 191,475.92 and 75,088.03 is: 103,621.80
Step by Step Solution
- Step 1: Write the proportion equation
138,750.24 : 191,475.92 = 75,088.03 : x - Step 2: Convert to fraction form
138,750.24/191,475.92 = 75,088.03/x - Step 3: Cross multiply
138,750.24x = 191,475.92 × 75,088.03 - Step 4: Simplify right side
138,750.24x = 14,377,549,625.24 - Step 5: Solve for x
x = 14,377,549,625.24/138,750.24 - Step 6: Final answer
x = 103,621.80
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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.