Finding the Fourth Proportional to 127,042.99, 175,318.12 and 69,681.15
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Solution
The fourth proportional to 127,042.99, 175,318.12 and 69,681.15 is: 96,159.33
Step by Step Solution
- Step 1: Write the proportion equation
127,042.99 : 175,318.12 = 69,681.15 : x - Step 2: Convert to fraction form
127,042.99/175,318.12 = 69,681.15/x - Step 3: Cross multiply
127,042.99x = 175,318.12 × 69,681.15 - Step 4: Simplify right side
127,042.99x = 12,216,368,217.44 - Step 5: Solve for x
x = 12,216,368,217.44/127,042.99 - Step 6: Final answer
x = 96,159.33
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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.