Finding the Fourth Proportional to 147,154.12, 203,079.35 and 86,727.31
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Solution
The fourth proportional to 147,154.12, 203,079.35 and 86,727.31 is: 119,687.62
Step by Step Solution
- Step 1: Write the proportion equation
147,154.12 : 203,079.35 = 86,727.31 : x - Step 2: Convert to fraction form
147,154.12/203,079.35 = 86,727.31/x - Step 3: Cross multiply
147,154.12x = 203,079.35 × 86,727.31 - Step 4: Simplify right side
147,154.12x = 17,612,525,451.17 - Step 5: Solve for x
x = 17,612,525,451.17/147,154.12 - Step 6: Final answer
x = 119,687.62
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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.