Finding the Fourth Proportional to 98,246.63, 147,246.70 and 42,020.75
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Solution
The fourth proportional to 98,246.63, 147,246.70 and 42,020.75 is: 62,978.41
Step by Step Solution
- Step 1: Write the proportion equation
98,246.63 : 147,246.70 = 42,020.75 : x - Step 2: Convert to fraction form
98,246.63/147,246.70 = 42,020.75/x - Step 3: Cross multiply
98,246.63x = 147,246.70 × 42,020.75 - Step 4: Simplify right side
98,246.63x = 6,187,416,769.03 - Step 5: Solve for x
x = 6,187,416,769.03/98,246.63 - Step 6: Final answer
x = 62,978.41
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.