Finding the Fourth Proportional to 157,780.66, 236,495.68 and 120,216.88
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Solution
The fourth proportional to 157,780.66, 236,495.68 and 120,216.88 is: 180,191.75
Step by Step Solution
- Step 1: Write the proportion equation
157,780.66 : 236,495.68 = 120,216.88 : x - Step 2: Convert to fraction form
157,780.66/236,495.68 = 120,216.88/x - Step 3: Cross multiply
157,780.66x = 236,495.68 × 120,216.88 - Step 4: Simplify right side
157,780.66x = 28,430,772,783.08 - Step 5: Solve for x
x = 28,430,772,783.08/157,780.66 - Step 6: Final answer
x = 180,191.75
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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.