Finding the Fourth Proportional to 104,742.57, 144,547.79 and 56,998.99
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Solution
The fourth proportional to 104,742.57, 144,547.79 and 56,998.99 is: 78,660.27
Step by Step Solution
- Step 1: Write the proportion equation
104,742.57 : 144,547.79 = 56,998.99 : x - Step 2: Convert to fraction form
104,742.57/144,547.79 = 56,998.99/x - Step 3: Cross multiply
104,742.57x = 144,547.79 × 56,998.99 - Step 4: Simplify right side
104,742.57x = 8,239,078,253.04 - Step 5: Solve for x
x = 8,239,078,253.04/104,742.57 - Step 6: Final answer
x = 78,660.27
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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.