Finding the Fourth Proportional to 107,833.80, 161,750.70 and 90,337.80
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Solution
The fourth proportional to 107,833.80, 161,750.70 and 90,337.80 is: 135,506.70
Step by Step Solution
- Step 1: Write the proportion equation
107,833.80 : 161,750.70 = 90,337.80 : x - Step 2: Convert to fraction form
107,833.80/161,750.70 = 90,337.80/x - Step 3: Cross multiply
107,833.80x = 161,750.70 × 90,337.80 - Step 4: Simplify right side
107,833.80x = 14,612,202,386.46 - Step 5: Solve for x
x = 14,612,202,386.46/107,833.80 - Step 6: Final answer
x = 135,506.70
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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.