Finding the Fourth Proportional to 157,681.74, 236,553.75 and 57,842.85
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Solution
The fourth proportional to 157,681.74, 236,553.75 and 57,842.85 is: 86,775.70
Step by Step Solution
- Step 1: Write the proportion equation
157,681.74 : 236,553.75 = 57,842.85 : x - Step 2: Convert to fraction form
157,681.74/236,553.75 = 57,842.85/x - Step 3: Cross multiply
157,681.74x = 236,553.75 × 57,842.85 - Step 4: Simplify right side
157,681.74x = 13,682,943,078.19 - Step 5: Solve for x
x = 13,682,943,078.19/157,681.74 - Step 6: Final answer
x = 86,775.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.