Finding the Fourth Proportional to 83,149.93, 124,875.23 and 76,817.99
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Solution
The fourth proportional to 83,149.93, 124,875.23 and 76,817.99 is: 115,365.87
Step by Step Solution
- Step 1: Write the proportion equation
83,149.93 : 124,875.23 = 76,817.99 : x - Step 2: Convert to fraction form
83,149.93/124,875.23 = 76,817.99/x - Step 3: Cross multiply
83,149.93x = 124,875.23 × 76,817.99 - Step 4: Simplify right side
83,149.93x = 9,592,663,785.30 - Step 5: Solve for x
x = 9,592,663,785.30/83,149.93 - Step 6: Final answer
x = 115,365.87
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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.