Finding the Fourth Proportional to 105,460.09, 145,512.38 and 62,453.09
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Solution
The fourth proportional to 105,460.09, 145,512.38 and 62,453.09 is: 86,171.92
Step by Step Solution
- Step 1: Write the proportion equation
105,460.09 : 145,512.38 = 62,453.09 : x - Step 2: Convert to fraction form
105,460.09/145,512.38 = 62,453.09/x - Step 3: Cross multiply
105,460.09x = 145,512.38 × 62,453.09 - Step 4: Simplify right side
105,460.09x = 9,087,698,284.17 - Step 5: Solve for x
x = 9,087,698,284.17/105,460.09 - Step 6: Final answer
x = 86,171.92
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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.