Finding the Fourth Proportional to 124,509.24, 171,878.40 and 84,344.99
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Solution
The fourth proportional to 124,509.24, 171,878.40 and 84,344.99 is: 116,433.78
Step by Step Solution
- Step 1: Write the proportion equation
124,509.24 : 171,878.40 = 84,344.99 : x - Step 2: Convert to fraction form
124,509.24/171,878.40 = 84,344.99/x - Step 3: Cross multiply
124,509.24x = 171,878.40 × 84,344.99 - Step 4: Simplify right side
124,509.24x = 14,497,081,069.82 - Step 5: Solve for x
x = 14,497,081,069.82/124,509.24 - Step 6: Final answer
x = 116,433.78
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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.