Finding the Fourth Proportional to 104,209.08, 143,756.10 and 68,394.12
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Solution
The fourth proportional to 104,209.08, 143,756.10 and 68,394.12 is: 94,349.47
Step by Step Solution
- Step 1: Write the proportion equation
104,209.08 : 143,756.10 = 68,394.12 : x - Step 2: Convert to fraction form
104,209.08/143,756.10 = 68,394.12/x - Step 3: Cross multiply
104,209.08x = 143,756.10 × 68,394.12 - Step 4: Simplify right side
104,209.08x = 9,832,071,954.13 - Step 5: Solve for x
x = 9,832,071,954.13/104,209.08 - Step 6: Final answer
x = 94,349.47
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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.