Finding the Fourth Proportional to 130,845.26, 180,575.79 and 74,260.28
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Solution
The fourth proportional to 130,845.26, 180,575.79 and 74,260.28 is: 102,484.48
Step by Step Solution
- Step 1: Write the proportion equation
130,845.26 : 180,575.79 = 74,260.28 : x - Step 2: Convert to fraction form
130,845.26/180,575.79 = 74,260.28/x - Step 3: Cross multiply
130,845.26x = 180,575.79 × 74,260.28 - Step 4: Simplify right side
130,845.26x = 13,409,608,726.62 - Step 5: Solve for x
x = 13,409,608,726.62/130,845.26 - Step 6: Final answer
x = 102,484.48
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1.5x scale
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.