Finding the Fourth Proportional to 132,547.18, 182,909.66 and 72,118.08
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Solution
The fourth proportional to 132,547.18, 182,909.66 and 72,118.08 is: 99,519.99
Step by Step Solution
- Step 1: Write the proportion equation
132,547.18 : 182,909.66 = 72,118.08 : x - Step 2: Convert to fraction form
132,547.18/182,909.66 = 72,118.08/x - Step 3: Cross multiply
132,547.18x = 182,909.66 × 72,118.08 - Step 4: Simplify right side
132,547.18x = 13,191,093,492.65 - Step 5: Solve for x
x = 13,191,093,492.65/132,547.18 - Step 6: Final answer
x = 99,519.99
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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.