Finding the Fourth Proportional to 114,349.75, 157,802.66 and 69,637.75
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Solution
The fourth proportional to 114,349.75, 157,802.66 and 69,637.75 is: 96,100.10
Step by Step Solution
- Step 1: Write the proportion equation
114,349.75 : 157,802.66 = 69,637.75 : x - Step 2: Convert to fraction form
114,349.75/157,802.66 = 69,637.75/x - Step 3: Cross multiply
114,349.75x = 157,802.66 × 69,637.75 - Step 4: Simplify right side
114,349.75x = 10,989,021,838.23 - Step 5: Solve for x
x = 10,989,021,838.23/114,349.75 - Step 6: Final answer
x = 96,100.10
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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.