Finding the Fourth Proportional to 157,880.17, 217,872.06 and 86,258.65
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Solution
The fourth proportional to 157,880.17, 217,872.06 and 86,258.65 is: 119,035.53
Step by Step Solution
- Step 1: Write the proportion equation
157,880.17 : 217,872.06 = 86,258.65 : x - Step 2: Convert to fraction form
157,880.17/217,872.06 = 86,258.65/x - Step 3: Cross multiply
157,880.17x = 217,872.06 × 86,258.65 - Step 4: Simplify right side
157,880.17x = 18,793,349,768.32 - Step 5: Solve for x
x = 18,793,349,768.32/157,880.17 - Step 6: Final answer
x = 119,035.53
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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.