Finding the Fourth Proportional to 98,423.28, 147,313.80 and 74,920.08
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Solution
The fourth proportional to 98,423.28, 147,313.80 and 74,920.08 is: 112,135.68
Step by Step Solution
- Step 1: Write the proportion equation
98,423.28 : 147,313.80 = 74,920.08 : x - Step 2: Convert to fraction form
98,423.28/147,313.80 = 74,920.08/x - Step 3: Cross multiply
98,423.28x = 147,313.80 × 74,920.08 - Step 4: Simplify right side
98,423.28x = 11,036,761,681.10 - Step 5: Solve for x
x = 11,036,761,681.10/98,423.28 - Step 6: Final answer
x = 112,135.68
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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.