Finding the Fourth Proportional to 150,683.14, 207,971.40 and 99,696.88
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Solution
The fourth proportional to 150,683.14, 207,971.40 and 99,696.88 is: 137,600.66
Step by Step Solution
- Step 1: Write the proportion equation
150,683.14 : 207,971.40 = 99,696.88 : x - Step 2: Convert to fraction form
150,683.14/207,971.40 = 99,696.88/x - Step 3: Cross multiply
150,683.14x = 207,971.40 × 99,696.88 - Step 4: Simplify right side
150,683.14x = 20,734,099,709.23 - Step 5: Solve for x
x = 20,734,099,709.23/150,683.14 - Step 6: Final answer
x = 137,600.66
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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.