Finding the Fourth Proportional to 134,517.19, 185,617.47 and 77,153.55
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Solution
The fourth proportional to 134,517.19, 185,617.47 and 77,153.55 is: 106,462.57
Step by Step Solution
- Step 1: Write the proportion equation
134,517.19 : 185,617.47 = 77,153.55 : x - Step 2: Convert to fraction form
134,517.19/185,617.47 = 77,153.55/x - Step 3: Cross multiply
134,517.19x = 185,617.47 × 77,153.55 - Step 4: Simplify right side
134,517.19x = 14,321,045,767.13 - Step 5: Solve for x
x = 14,321,045,767.13/134,517.19 - Step 6: Final answer
x = 106,462.57
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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.