Finding the Fourth Proportional to 157,235.58, 216,981.99 and 85,616.46
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Solution
The fourth proportional to 157,235.58, 216,981.99 and 85,616.46 is: 118,149.02
Step by Step Solution
- Step 1: Write the proportion equation
157,235.58 : 216,981.99 = 85,616.46 : x - Step 2: Convert to fraction form
157,235.58/216,981.99 = 85,616.46/x - Step 3: Cross multiply
157,235.58x = 216,981.99 × 85,616.46 - Step 4: Simplify right side
157,235.58x = 18,577,229,867.56 - Step 5: Solve for x
x = 18,577,229,867.56/157,235.58 - Step 6: Final answer
x = 118,149.02
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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.