Finding the Fourth Proportional to 89,108.26, 133,343.91 and 77,399.99
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Solution
The fourth proportional to 89,108.26, 133,343.91 and 77,399.99 is: 115,823.35
Step by Step Solution
- Step 1: Write the proportion equation
89,108.26 : 133,343.91 = 77,399.99 : x - Step 2: Convert to fraction form
89,108.26/133,343.91 = 77,399.99/x - Step 3: Cross multiply
89,108.26x = 133,343.91 × 77,399.99 - Step 4: Simplify right side
89,108.26x = 10,320,817,726.60 - Step 5: Solve for x
x = 10,320,817,726.60/89,108.26 - Step 6: Final answer
x = 115,823.35
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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.