Finding the Fourth Proportional to 127,683.32, 176,201.57 and 70,321.55
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Solution
The fourth proportional to 127,683.32, 176,201.57 and 70,321.55 is: 97,042.96
Step by Step Solution
- Step 1: Write the proportion equation
127,683.32 : 176,201.57 = 70,321.55 : x - Step 2: Convert to fraction form
127,683.32/176,201.57 = 70,321.55/x - Step 3: Cross multiply
127,683.32x = 176,201.57 × 70,321.55 - Step 4: Simplify right side
127,683.32x = 12,390,766,282.22 - Step 5: Solve for x
x = 12,390,766,282.22/127,683.32 - Step 6: Final answer
x = 97,042.96
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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.