Finding the Fourth Proportional to 127,713.60, 176,258.60 and 70,358.79
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Solution
The fourth proportional to 127,713.60, 176,258.60 and 70,358.79 is: 97,102.75
Step by Step Solution
- Step 1: Write the proportion equation
127,713.60 : 176,258.60 = 70,358.79 : x - Step 2: Convert to fraction form
127,713.60/176,258.60 = 70,358.79/x - Step 3: Cross multiply
127,713.60x = 176,258.60 × 70,358.79 - Step 4: Simplify right side
127,713.60x = 12,401,341,823.09 - Step 5: Solve for x
x = 12,401,341,823.09/127,713.60 - Step 6: Final answer
x = 97,102.75
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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.