Finding the Fourth Proportional to 135,560.74, 187,073.84 and 75,135.28
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Solution
The fourth proportional to 135,560.74, 187,073.84 and 75,135.28 is: 103,686.69
Step by Step Solution
- Step 1: Write the proportion equation
135,560.74 : 187,073.84 = 75,135.28 : x - Step 2: Convert to fraction form
135,560.74/187,073.84 = 75,135.28/x - Step 3: Cross multiply
135,560.74x = 187,073.84 × 75,135.28 - Step 4: Simplify right side
135,560.74x = 14,055,844,505.71 - Step 5: Solve for x
x = 14,055,844,505.71/135,560.74 - Step 6: Final answer
x = 103,686.69
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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.