Finding the Fourth Proportional to 134,971.26, 186,260.34 and 78,386.28
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Solution
The fourth proportional to 134,971.26, 186,260.34 and 78,386.28 is: 108,173.07
Step by Step Solution
- Step 1: Write the proportion equation
134,971.26 : 186,260.34 = 78,386.28 : x - Step 2: Convert to fraction form
134,971.26/186,260.34 = 78,386.28/x - Step 3: Cross multiply
134,971.26x = 186,260.34 × 78,386.28 - Step 4: Simplify right side
134,971.26x = 14,600,255,164.14 - Step 5: Solve for x
x = 14,600,255,164.14/134,971.26 - Step 6: Final answer
x = 108,173.07
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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.