Finding the Fourth Proportional to 138,140.08, 207,210.08 and 91,382.02
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Solution
The fourth proportional to 138,140.08, 207,210.08 and 91,382.02 is: 137,073.00
Step by Step Solution
- Step 1: Write the proportion equation
138,140.08 : 207,210.08 = 91,382.02 : x - Step 2: Convert to fraction form
138,140.08/207,210.08 = 91,382.02/x - Step 3: Cross multiply
138,140.08x = 207,210.08 × 91,382.02 - Step 4: Simplify right side
138,140.08x = 18,935,275,674.76 - Step 5: Solve for x
x = 18,935,275,674.76/138,140.08 - Step 6: Final answer
x = 137,073.00
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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.