Finding the Fourth Proportional to 105,701.63, 145,944.79 and 68,041.49
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Solution
The fourth proportional to 105,701.63, 145,944.79 and 68,041.49 is: 93,946.52
Step by Step Solution
- Step 1: Write the proportion equation
105,701.63 : 145,944.79 = 68,041.49 : x - Step 2: Convert to fraction form
105,701.63/145,944.79 = 68,041.49/x - Step 3: Cross multiply
105,701.63x = 145,944.79 × 68,041.49 - Step 4: Simplify right side
105,701.63x = 9,930,300,069.51 - Step 5: Solve for x
x = 9,930,300,069.51/105,701.63 - Step 6: Final answer
x = 93,946.52
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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.