Finding the Fourth Proportional to 135,659.25, 187,209.77 and 75,239.15
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Solution
The fourth proportional to 135,659.25, 187,209.77 and 75,239.15 is: 103,830.02
Step by Step Solution
- Step 1: Write the proportion equation
135,659.25 : 187,209.77 = 75,239.15 : x - Step 2: Convert to fraction form
135,659.25/187,209.77 = 75,239.15/x - Step 3: Cross multiply
135,659.25x = 187,209.77 × 75,239.15 - Step 4: Simplify right side
135,659.25x = 14,085,502,654.25 - Step 5: Solve for x
x = 14,085,502,654.25/135,659.25 - Step 6: Final answer
x = 103,830.02
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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.