Finding the Fourth Proportional to 105,390.62, 145,444.38 and 62,394.80
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Solution
The fourth proportional to 105,390.62, 145,444.38 and 62,394.80 is: 86,107.98
Step by Step Solution
- Step 1: Write the proportion equation
105,390.62 : 145,444.38 = 62,394.80 : x - Step 2: Convert to fraction form
105,390.62/145,444.38 = 62,394.80/x - Step 3: Cross multiply
105,390.62x = 145,444.38 × 62,394.80 - Step 4: Simplify right side
105,390.62x = 9,074,973,001.22 - Step 5: Solve for x
x = 9,074,973,001.22/105,390.62 - Step 6: Final answer
x = 86,107.98
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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.