Finding the Fourth Proportional to 128,024.49, 176,757.01 and 114,572.62
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Solution
The fourth proportional to 128,024.49, 176,757.01 and 114,572.62 is: 158,184.69
Step by Step Solution
- Step 1: Write the proportion equation
128,024.49 : 176,757.01 = 114,572.62 : x - Step 2: Convert to fraction form
128,024.49/176,757.01 = 114,572.62/x - Step 3: Cross multiply
128,024.49x = 176,757.01 × 114,572.62 - Step 4: Simplify right side
128,024.49x = 20,251,513,739.07 - Step 5: Solve for x
x = 20,251,513,739.07/128,024.49 - Step 6: Final answer
x = 158,184.69
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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.