Finding the Fourth Proportional to 105,357.36, 145,381.23 and 62,338.17
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Solution
The fourth proportional to 105,357.36, 145,381.23 and 62,338.17 is: 86,019.62
Step by Step Solution
- Step 1: Write the proportion equation
105,357.36 : 145,381.23 = 62,338.17 : x - Step 2: Convert to fraction form
105,357.36/145,381.23 = 62,338.17/x - Step 3: Cross multiply
105,357.36x = 145,381.23 × 62,338.17 - Step 4: Simplify right side
105,357.36x = 9,062,799,830.55 - Step 5: Solve for x
x = 9,062,799,830.55/105,357.36 - Step 6: Final answer
x = 86,019.62
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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.