Finding the Fourth Proportional to 103,122.24, 142,258.08 and 67,295.68
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Solution
The fourth proportional to 103,122.24, 142,258.08 and 67,295.68 is: 92,835.01
Step by Step Solution
- Step 1: Write the proportion equation
103,122.24 : 142,258.08 = 67,295.68 : x - Step 2: Convert to fraction form
103,122.24/142,258.08 = 67,295.68/x - Step 3: Cross multiply
103,122.24x = 142,258.08 × 67,295.68 - Step 4: Simplify right side
103,122.24x = 9,573,354,229.09 - Step 5: Solve for x
x = 9,573,354,229.09/103,122.24 - Step 6: Final answer
x = 92,835.01
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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.