Finding the Fourth Proportional to 130,936.23, 180,686.91 and 80,034.18
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Solution
The fourth proportional to 130,936.23, 180,686.91 and 80,034.18 is: 110,444.07
Step by Step Solution
- Step 1: Write the proportion equation
130,936.23 : 180,686.91 = 80,034.18 : x - Step 2: Convert to fraction form
130,936.23/180,686.91 = 80,034.18/x - Step 3: Cross multiply
130,936.23x = 180,686.91 × 80,034.18 - Step 4: Simplify right side
130,936.23x = 14,461,129,206.10 - Step 5: Solve for x
x = 14,461,129,206.10/130,936.23 - Step 6: Final answer
x = 110,444.07
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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.