Finding the Fourth Proportional to 107,439.84, 161,159.75 and 40,864.59
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Solution
The fourth proportional to 107,439.84, 161,159.75 and 40,864.59 is: 61,296.88
Step by Step Solution
- Step 1: Write the proportion equation
107,439.84 : 161,159.75 = 40,864.59 : x - Step 2: Convert to fraction form
107,439.84/161,159.75 = 40,864.59/x - Step 3: Cross multiply
107,439.84x = 161,159.75 × 40,864.59 - Step 4: Simplify right side
107,439.84x = 6,585,727,108.25 - Step 5: Solve for x
x = 6,585,727,108.25/107,439.84 - Step 6: Final answer
x = 61,296.88
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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.