Finding the Fourth Proportional to 129,974.02, 179,364.19 and 70,358.02
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Solution
The fourth proportional to 129,974.02, 179,364.19 and 70,358.02 is: 97,094.09
Step by Step Solution
- Step 1: Write the proportion equation
129,974.02 : 179,364.19 = 70,358.02 : x - Step 2: Convert to fraction form
129,974.02/179,364.19 = 70,358.02/x - Step 3: Cross multiply
129,974.02x = 179,364.19 × 70,358.02 - Step 4: Simplify right side
129,974.02x = 12,619,709,267.30 - Step 5: Solve for x
x = 12,619,709,267.30/129,974.02 - Step 6: Final answer
x = 97,094.09
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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.