Finding the Fourth Proportional to 157,572.45, 217,444.60 and 93,909.09
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Solution
The fourth proportional to 157,572.45, 217,444.60 and 93,909.09 is: 129,591.34
Step by Step Solution
- Step 1: Write the proportion equation
157,572.45 : 217,444.60 = 93,909.09 : x - Step 2: Convert to fraction form
157,572.45/217,444.60 = 93,909.09/x - Step 3: Cross multiply
157,572.45x = 217,444.60 × 93,909.09 - Step 4: Simplify right side
157,572.45x = 20,420,024,511.41 - Step 5: Solve for x
x = 20,420,024,511.41/157,572.45 - Step 6: Final answer
x = 129,591.34
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1.5x scale
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.