Finding the Fourth Proportional to 136,927.05, 188,959.30 and 76,497.71
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Solution
The fourth proportional to 136,927.05, 188,959.30 and 76,497.71 is: 105,566.82
Step by Step Solution
- Step 1: Write the proportion equation
136,927.05 : 188,959.30 = 76,497.71 : x - Step 2: Convert to fraction form
136,927.05/188,959.30 = 76,497.71/x - Step 3: Cross multiply
136,927.05x = 188,959.30 × 76,497.71 - Step 4: Simplify right side
136,927.05x = 14,454,953,733.20 - Step 5: Solve for x
x = 14,454,953,733.20/136,927.05 - Step 6: Final answer
x = 105,566.82
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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.