Finding the Fourth Proportional to 130,121.28, 179,537.28 and 97,934.88
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Solution
The fourth proportional to 130,121.28, 179,537.28 and 97,934.88 is: 135,127.49
Step by Step Solution
- Step 1: Write the proportion equation
130,121.28 : 179,537.28 = 97,934.88 : x - Step 2: Convert to fraction form
130,121.28/179,537.28 = 97,934.88/x - Step 3: Cross multiply
130,121.28x = 179,537.28 × 97,934.88 - Step 4: Simplify right side
130,121.28x = 17,582,961,972.33 - Step 5: Solve for x
x = 17,582,961,972.33/130,121.28 - Step 6: Final answer
x = 135,127.49
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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.