Finding the Fourth Proportional to 157,671.15, 217,586.79 and 86,052.75
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Solution
The fourth proportional to 157,671.15, 217,586.79 and 86,052.75 is: 118,753.12
Step by Step Solution
- Step 1: Write the proportion equation
157,671.15 : 217,586.79 = 86,052.75 : x - Step 2: Convert to fraction form
157,671.15/217,586.79 = 86,052.75/x - Step 3: Cross multiply
157,671.15x = 217,586.79 × 86,052.75 - Step 4: Simplify right side
157,671.15x = 18,723,941,643.17 - Step 5: Solve for x
x = 18,723,941,643.17/157,671.15 - Step 6: Final answer
x = 118,753.12
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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.