Finding the Fourth Proportional to 103,558.08, 142,909.36 and 58,236.08
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Solution
The fourth proportional to 103,558.08, 142,909.36 and 58,236.08 is: 80,365.35
Step by Step Solution
- Step 1: Write the proportion equation
103,558.08 : 142,909.36 = 58,236.08 : x - Step 2: Convert to fraction form
103,558.08/142,909.36 = 58,236.08/x - Step 3: Cross multiply
103,558.08x = 142,909.36 × 58,236.08 - Step 4: Simplify right side
103,558.08x = 8,322,480,921.71 - Step 5: Solve for x
x = 8,322,480,921.71/103,558.08 - Step 6: Final answer
x = 80,365.35
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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.