Finding the Fourth Proportional to 127,718.69, 176,257.26 and 71,130.06
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Solution
The fourth proportional to 127,718.69, 176,257.26 and 71,130.06 is: 98,162.53
Step by Step Solution
- Step 1: Write the proportion equation
127,718.69 : 176,257.26 = 71,130.06 : x - Step 2: Convert to fraction form
127,718.69/176,257.26 = 71,130.06/x - Step 3: Cross multiply
127,718.69x = 176,257.26 × 71,130.06 - Step 4: Simplify right side
127,718.69x = 12,537,189,479.24 - Step 5: Solve for x
x = 12,537,189,479.24/127,718.69 - Step 6: Final answer
x = 98,162.53
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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.