Finding the Fourth Proportional to 157,645.70, 236,122.95 and 136,909.70
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Solution
The fourth proportional to 157,645.70, 236,122.95 and 136,909.70 is: 205,064.41
Step by Step Solution
- Step 1: Write the proportion equation
157,645.70 : 236,122.95 = 136,909.70 : x - Step 2: Convert to fraction form
157,645.70/236,122.95 = 136,909.70/x - Step 3: Cross multiply
157,645.70x = 236,122.95 × 136,909.70 - Step 4: Simplify right side
157,645.70x = 32,327,522,247.62 - Step 5: Solve for x
x = 32,327,522,247.62/157,645.70 - Step 6: Final answer
x = 205,064.41
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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.