Finding the Fourth Proportional to 102,775.03, 141,823.76 and 57,443.99
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Solution
The fourth proportional to 102,775.03, 141,823.76 and 57,443.99 is: 79,269.47
Step by Step Solution
- Step 1: Write the proportion equation
102,775.03 : 141,823.76 = 57,443.99 : x - Step 2: Convert to fraction form
102,775.03/141,823.76 = 57,443.99/x - Step 3: Cross multiply
102,775.03x = 141,823.76 × 57,443.99 - Step 4: Simplify right side
102,775.03x = 8,146,921,977.99 - Step 5: Solve for x
x = 8,146,921,977.99/102,775.03 - Step 6: Final answer
x = 79,269.47
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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.