Finding the Fourth Proportional to 136,726.12, 205,109.69 and 47,963.99
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Solution
The fourth proportional to 136,726.12, 205,109.69 and 47,963.99 is: 71,953.17
Step by Step Solution
- Step 1: Write the proportion equation
136,726.12 : 205,109.69 = 47,963.99 : x - Step 2: Convert to fraction form
136,726.12/205,109.69 = 47,963.99/x - Step 3: Cross multiply
136,726.12x = 205,109.69 × 47,963.99 - Step 4: Simplify right side
136,726.12x = 9,837,877,854.69 - Step 5: Solve for x
x = 9,837,877,854.69/136,726.12 - Step 6: Final answer
x = 71,953.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.