Finding the Fourth Proportional to 107,427.19, 160,878.34 and 92,730.55
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Solution
The fourth proportional to 107,427.19, 160,878.34 and 92,730.55 is: 138,869.28
Step by Step Solution
- Step 1: Write the proportion equation
107,427.19 : 160,878.34 = 92,730.55 : x - Step 2: Convert to fraction form
107,427.19/160,878.34 = 92,730.55/x - Step 3: Cross multiply
107,427.19x = 160,878.34 × 92,730.55 - Step 4: Simplify right side
107,427.19x = 14,918,336,951.29 - Step 5: Solve for x
x = 14,918,336,951.29/107,427.19 - Step 6: Final answer
x = 138,869.28
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.