Finding the Fourth Proportional to 86,852.99, 130,136.39 and 79,589.99
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Solution
The fourth proportional to 86,852.99, 130,136.39 and 79,589.99 is: 119,253.85
Step by Step Solution
- Step 1: Write the proportion equation
86,852.99 : 130,136.39 = 79,589.99 : x - Step 2: Convert to fraction form
86,852.99/130,136.39 = 79,589.99/x - Step 3: Cross multiply
86,852.99x = 130,136.39 × 79,589.99 - Step 4: Simplify right side
86,852.99x = 10,357,553,580.79 - Step 5: Solve for x
x = 10,357,553,580.79/86,852.99 - Step 6: Final answer
x = 119,253.85
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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.