Finding the Fourth Proportional to 134,871.80, 202,307.70 and 55,977.80
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Solution
The fourth proportional to 134,871.80, 202,307.70 and 55,977.80 is: 83,966.70
Step by Step Solution
- Step 1: Write the proportion equation
134,871.80 : 202,307.70 = 55,977.80 : x - Step 2: Convert to fraction form
134,871.80/202,307.70 = 55,977.80/x - Step 3: Cross multiply
134,871.80x = 202,307.70 × 55,977.80 - Step 4: Simplify right side
134,871.80x = 11,324,739,969.06 - Step 5: Solve for x
x = 11,324,739,969.06/134,871.80 - Step 6: Final answer
x = 83,966.70
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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.