Finding the Fourth Proportional to 111,565.74, 153,855.17 and 73,257.70
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Solution
The fourth proportional to 111,565.74, 153,855.17 and 73,257.70 is: 101,026.31
Step by Step Solution
- Step 1: Write the proportion equation
111,565.74 : 153,855.17 = 73,257.70 : x - Step 2: Convert to fraction form
111,565.74/153,855.17 = 73,257.70/x - Step 3: Cross multiply
111,565.74x = 153,855.17 × 73,257.70 - Step 4: Simplify right side
111,565.74x = 11,271,075,136.38 - Step 5: Solve for x
x = 11,271,075,136.38/111,565.74 - Step 6: Final answer
x = 101,026.31
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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.