Finding the Fourth Proportional to 112,487.38, 155,235.82 and 62,189.62
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Solution
The fourth proportional to 112,487.38, 155,235.82 and 62,189.62 is: 85,823.46
Step by Step Solution
- Step 1: Write the proportion equation
112,487.38 : 155,235.82 = 62,189.62 : x - Step 2: Convert to fraction form
112,487.38/155,235.82 = 62,189.62/x - Step 3: Cross multiply
112,487.38x = 155,235.82 × 62,189.62 - Step 4: Simplify right side
112,487.38x = 9,654,056,656.19 - Step 5: Solve for x
x = 9,654,056,656.19/112,487.38 - Step 6: Final answer
x = 85,823.46
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1.5x scale
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.