Finding the Fourth Proportional to 103,657.08, 155,459.70 and 29,785.08
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Solution
The fourth proportional to 103,657.08, 155,459.70 and 29,785.08 is: 44,670.17
Step by Step Solution
- Step 1: Write the proportion equation
103,657.08 : 155,459.70 = 29,785.08 : x - Step 2: Convert to fraction form
103,657.08/155,459.70 = 29,785.08/x - Step 3: Cross multiply
103,657.08x = 155,459.70 × 29,785.08 - Step 4: Simplify right side
103,657.08x = 4,630,379,601.28 - Step 5: Solve for x
x = 4,630,379,601.28/103,657.08 - Step 6: Final answer
x = 44,670.17
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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.