Finding the Fourth Proportional to 130,098.96, 179,555.94 and 79,119.99
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Solution
The fourth proportional to 130,098.96, 179,555.94 and 79,119.99 is: 109,197.37
Step by Step Solution
- Step 1: Write the proportion equation
130,098.96 : 179,555.94 = 79,119.99 : x - Step 2: Convert to fraction form
130,098.96/179,555.94 = 79,119.99/x - Step 3: Cross multiply
130,098.96x = 179,555.94 × 79,119.99 - Step 4: Simplify right side
130,098.96x = 14,206,464,177.24 - Step 5: Solve for x
x = 14,206,464,177.24/130,098.96 - Step 6: Final answer
x = 109,197.37
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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.