Finding the Fourth Proportional to 128,054.07, 176,802.08 and 82,841.49
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Solution
The fourth proportional to 128,054.07, 176,802.08 and 82,841.49 is: 114,377.84
Step by Step Solution
- Step 1: Write the proportion equation
128,054.07 : 176,802.08 = 82,841.49 : x - Step 2: Convert to fraction form
128,054.07/176,802.08 = 82,841.49/x - Step 3: Cross multiply
128,054.07x = 176,802.08 × 82,841.49 - Step 4: Simplify right side
128,054.07x = 14,646,547,328.09 - Step 5: Solve for x
x = 14,646,547,328.09/128,054.07 - Step 6: Final answer
x = 114,377.84
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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.