Finding the Fourth Proportional to 106,365.13, 146,781.91 and 57,967.44
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Solution
The fourth proportional to 106,365.13, 146,781.91 and 57,967.44 is: 79,993.99
Step by Step Solution
- Step 1: Write the proportion equation
106,365.13 : 146,781.91 = 57,967.44 : x - Step 2: Convert to fraction form
106,365.13/146,781.91 = 57,967.44/x - Step 3: Cross multiply
106,365.13x = 146,781.91 × 57,967.44 - Step 4: Simplify right side
106,365.13x = 8,508,571,271.17 - Step 5: Solve for x
x = 8,508,571,271.17/106,365.13 - Step 6: Final answer
x = 79,993.99
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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.