Finding the Fourth Proportional to 104,899.14, 144,779.54 and 61,875.99
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Solution
The fourth proportional to 104,899.14, 144,779.54 and 61,875.99 is: 85,399.91
Step by Step Solution
- Step 1: Write the proportion equation
104,899.14 : 144,779.54 = 61,875.99 : x - Step 2: Convert to fraction form
104,899.14/144,779.54 = 61,875.99/x - Step 3: Cross multiply
104,899.14x = 144,779.54 × 61,875.99 - Step 4: Simplify right side
104,899.14x = 8,958,377,059.86 - Step 5: Solve for x
x = 8,958,377,059.86/104,899.14 - Step 6: Final answer
x = 85,399.91
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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.