Finding the Fourth Proportional to 149,407.08, 206,175.74 and 81,422.62
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Solution
The fourth proportional to 149,407.08, 206,175.74 and 81,422.62 is: 112,359.93
Step by Step Solution
- Step 1: Write the proportion equation
149,407.08 : 206,175.74 = 81,422.62 : x - Step 2: Convert to fraction form
149,407.08/206,175.74 = 81,422.62/x - Step 3: Cross multiply
149,407.08x = 206,175.74 × 81,422.62 - Step 4: Simplify right side
149,407.08x = 16,787,368,931.24 - Step 5: Solve for x
x = 16,787,368,931.24/149,407.08 - Step 6: Final answer
x = 112,359.93
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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.