Finding the Fourth Proportional to 129,547.80, 194,303.24 and 40,798.99
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Solution
The fourth proportional to 129,547.80, 194,303.24 and 40,798.99 is: 61,192.68
Step by Step Solution
- Step 1: Write the proportion equation
129,547.80 : 194,303.24 = 40,798.99 : x - Step 2: Convert to fraction form
129,547.80/194,303.24 = 40,798.99/x - Step 3: Cross multiply
129,547.80x = 194,303.24 × 40,798.99 - Step 4: Simplify right side
129,547.80x = 7,927,376,798.83 - Step 5: Solve for x
x = 7,927,376,798.83/129,547.80 - Step 6: Final answer
x = 61,192.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.