Finding the Fourth Proportional to 127,985.44, 176,624.76 and 71,407.84
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Solution
The fourth proportional to 127,985.44, 176,624.76 and 71,407.84 is: 98,545.53
Step by Step Solution
- Step 1: Write the proportion equation
127,985.44 : 176,624.76 = 71,407.84 : x - Step 2: Convert to fraction form
127,985.44/176,624.76 = 71,407.84/x - Step 3: Cross multiply
127,985.44x = 176,624.76 × 71,407.84 - Step 4: Simplify right side
127,985.44x = 12,612,392,602.12 - Step 5: Solve for x
x = 12,612,392,602.12/127,985.44 - Step 6: Final answer
x = 98,545.53
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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.