Finding the Fourth Proportional to 152,113.36, 209,917.84 and 84,126.82
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Solution
The fourth proportional to 152,113.36, 209,917.84 and 84,126.82 is: 116,095.79
Step by Step Solution
- Step 1: Write the proportion equation
152,113.36 : 209,917.84 = 84,126.82 : x - Step 2: Convert to fraction form
152,113.36/209,917.84 = 84,126.82/x - Step 3: Cross multiply
152,113.36x = 209,917.84 × 84,126.82 - Step 4: Simplify right side
152,113.36x = 17,659,720,340.47 - Step 5: Solve for x
x = 17,659,720,340.47/152,113.36 - Step 6: Final answer
x = 116,095.79
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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.