Finding the Fourth Proportional to 149,120.19, 205,862.04 and 115,052.13
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Solution
The fourth proportional to 149,120.19, 205,862.04 and 115,052.13 is: 158,830.71
Step by Step Solution
- Step 1: Write the proportion equation
149,120.19 : 205,862.04 = 115,052.13 : x - Step 2: Convert to fraction form
149,120.19/205,862.04 = 115,052.13/x - Step 3: Cross multiply
149,120.19x = 205,862.04 × 115,052.13 - Step 4: Simplify right side
149,120.19x = 23,684,866,188.15 - Step 5: Solve for x
x = 23,684,866,188.15/149,120.19 - Step 6: Final answer
x = 158,830.71
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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.