Finding the Fourth Proportional to 145,964.07, 201,430.31 and 78,896.07
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Solution
The fourth proportional to 145,964.07, 201,430.31 and 78,896.07 is: 108,876.52
Step by Step Solution
- Step 1: Write the proportion equation
145,964.07 : 201,430.31 = 78,896.07 : x - Step 2: Convert to fraction form
145,964.07/201,430.31 = 78,896.07/x - Step 3: Cross multiply
145,964.07x = 201,430.31 × 78,896.07 - Step 4: Simplify right side
145,964.07x = 15,892,059,443.40 - Step 5: Solve for x
x = 15,892,059,443.40/145,964.07 - Step 6: Final answer
x = 108,876.52
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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.