Finding the Fourth Proportional to 138,911.19, 191,698.34 and 75,248.94
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Solution
The fourth proportional to 138,911.19, 191,698.34 and 75,248.94 is: 103,844.02
Step by Step Solution
- Step 1: Write the proportion equation
138,911.19 : 191,698.34 = 75,248.94 : x - Step 2: Convert to fraction form
138,911.19/191,698.34 = 75,248.94/x - Step 3: Cross multiply
138,911.19x = 191,698.34 × 75,248.94 - Step 4: Simplify right side
138,911.19x = 14,425,095,550.02 - Step 5: Solve for x
x = 14,425,095,550.02/138,911.19 - Step 6: Final answer
x = 103,844.02
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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.