Finding the Fourth Proportional to 104,433.13, 144,117.86 and 56,686.49
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Solution
The fourth proportional to 104,433.13, 144,117.86 and 56,686.49 is: 78,227.43
Step by Step Solution
- Step 1: Write the proportion equation
104,433.13 : 144,117.86 = 56,686.49 : x - Step 2: Convert to fraction form
104,433.13/144,117.86 = 56,686.49/x - Step 3: Cross multiply
104,433.13x = 144,117.86 × 56,686.49 - Step 4: Simplify right side
104,433.13x = 8,169,535,629.71 - Step 5: Solve for x
x = 8,169,535,629.71/104,433.13 - Step 6: Final answer
x = 78,227.43
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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.