Finding the Fourth Proportional to 127,721.23, 176,228.34 and 74,002.99
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Solution
The fourth proportional to 127,721.23, 176,228.34 and 74,002.99 is: 102,108.51
Step by Step Solution
- Step 1: Write the proportion equation
127,721.23 : 176,228.34 = 74,002.99 : x - Step 2: Convert to fraction form
127,721.23/176,228.34 = 74,002.99/x - Step 3: Cross multiply
127,721.23x = 176,228.34 × 74,002.99 - Step 4: Simplify right side
127,721.23x = 13,041,424,082.74 - Step 5: Solve for x
x = 13,041,424,082.74/127,721.23 - Step 6: Final answer
x = 102,108.51
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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.