Finding the Fourth Proportional to 79,235.94, 118,586.01 and 77,103.63
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Solution
The fourth proportional to 79,235.94, 118,586.01 and 77,103.63 is: 115,394.75
Step by Step Solution
- Step 1: Write the proportion equation
79,235.94 : 118,586.01 = 77,103.63 : x - Step 2: Convert to fraction form
79,235.94/118,586.01 = 77,103.63/x - Step 3: Cross multiply
79,235.94x = 118,586.01 × 77,103.63 - Step 4: Simplify right side
79,235.94x = 9,143,411,838.22 - Step 5: Solve for x
x = 9,143,411,838.22/79,235.94 - Step 6: Final answer
x = 115,394.75
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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.