Finding the Fourth Proportional to 135,854.60, 203,781.90 and 104,750.60
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Solution
The fourth proportional to 135,854.60, 203,781.90 and 104,750.60 is: 157,125.90
Step by Step Solution
- Step 1: Write the proportion equation
135,854.60 : 203,781.90 = 104,750.60 : x - Step 2: Convert to fraction form
135,854.60/203,781.90 = 104,750.60/x - Step 3: Cross multiply
135,854.60x = 203,781.90 × 104,750.60 - Step 4: Simplify right side
135,854.60x = 21,346,276,294.14 - Step 5: Solve for x
x = 21,346,276,294.14/135,854.60 - Step 6: Final answer
x = 157,125.90
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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.