Finding the Fourth Proportional to 114,399.51, 157,881.74 and 69,099.99
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Solution
The fourth proportional to 114,399.51, 157,881.74 and 69,099.99 is: 95,364.27
Step by Step Solution
- Step 1: Write the proportion equation
114,399.51 : 157,881.74 = 69,099.99 : x - Step 2: Convert to fraction form
114,399.51/157,881.74 = 69,099.99/x - Step 3: Cross multiply
114,399.51x = 157,881.74 × 69,099.99 - Step 4: Simplify right side
114,399.51x = 10,909,626,309.68 - Step 5: Solve for x
x = 10,909,626,309.68/114,399.51 - Step 6: Final answer
x = 95,364.27
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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.