Finding the Fourth Proportional to 157,800.96, 217,756.89 and 86,166.99
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Solution
The fourth proportional to 157,800.96, 217,756.89 and 86,166.99 is: 118,905.84
Step by Step Solution
- Step 1: Write the proportion equation
157,800.96 : 217,756.89 = 86,166.99 : x - Step 2: Convert to fraction form
157,800.96/217,756.89 = 86,166.99/x - Step 3: Cross multiply
157,800.96x = 217,756.89 × 86,166.99 - Step 4: Simplify right side
157,800.96x = 18,763,455,763.06 - Step 5: Solve for x
x = 18,763,455,763.06/157,800.96 - Step 6: Final answer
x = 118,905.84
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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.