Finding the Fourth Proportional to 112,698.75, 155,529.14 and 62,397.75
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Solution
The fourth proportional to 112,698.75, 155,529.14 and 62,397.75 is: 86,111.59
Step by Step Solution
- Step 1: Write the proportion equation
112,698.75 : 155,529.14 = 62,397.75 : x - Step 2: Convert to fraction form
112,698.75/155,529.14 = 62,397.75/x - Step 3: Cross multiply
112,698.75x = 155,529.14 × 62,397.75 - Step 4: Simplify right side
112,698.75x = 9,704,668,083.45 - Step 5: Solve for x
x = 9,704,668,083.45/112,698.75 - Step 6: Final answer
x = 86,111.59
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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.