Finding the Fourth Proportional to 127,863.48, 191,802.91 and 39,117.76
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Solution
The fourth proportional to 127,863.48, 191,802.91 and 39,117.76 is: 58,678.99
Step by Step Solution
- Step 1: Write the proportion equation
127,863.48 : 191,802.91 = 39,117.76 : x - Step 2: Convert to fraction form
127,863.48/191,802.91 = 39,117.76/x - Step 3: Cross multiply
127,863.48x = 191,802.91 × 39,117.76 - Step 4: Simplify right side
127,863.48x = 7,502,900,200.68 - Step 5: Solve for x
x = 7,502,900,200.68/127,863.48 - Step 6: Final answer
x = 58,678.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.