Finding the Fourth Proportional to 116,987.58, 175,718.70 and 103,258.08
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Solution
The fourth proportional to 116,987.58, 175,718.70 and 103,258.08 is: 155,096.60
Step by Step Solution
- Step 1: Write the proportion equation
116,987.58 : 175,718.70 = 103,258.08 : x - Step 2: Convert to fraction form
116,987.58/175,718.70 = 103,258.08/x - Step 3: Cross multiply
116,987.58x = 175,718.70 × 103,258.08 - Step 4: Simplify right side
116,987.58x = 18,144,375,582.10 - Step 5: Solve for x
x = 18,144,375,582.10/116,987.58 - Step 6: Final answer
x = 155,096.60
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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.