Finding the Fourth Proportional to 124,961.44, 187,422.91 and 40,721.40
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Solution
The fourth proportional to 124,961.44, 187,422.91 and 40,721.40 is: 61,075.82
Step by Step Solution
- Step 1: Write the proportion equation
124,961.44 : 187,422.91 = 40,721.40 : x - Step 2: Convert to fraction form
124,961.44/187,422.91 = 40,721.40/x - Step 3: Cross multiply
124,961.44x = 187,422.91 × 40,721.40 - Step 4: Simplify right side
124,961.44x = 7,632,122,146.55 - Step 5: Solve for x
x = 7,632,122,146.55/124,961.44 - Step 6: Final answer
x = 61,075.82
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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.