Finding the Fourth Proportional to 134,871.80, 202,283.40 and 84,862.40
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Solution
The fourth proportional to 134,871.80, 202,283.40 and 84,862.40 is: 127,278.31
Step by Step Solution
- Step 1: Write the proportion equation
134,871.80 : 202,283.40 = 84,862.40 : x - Step 2: Convert to fraction form
134,871.80/202,283.40 = 84,862.40/x - Step 3: Cross multiply
134,871.80x = 202,283.40 × 84,862.40 - Step 4: Simplify right side
134,871.80x = 17,166,254,804.16 - Step 5: Solve for x
x = 17,166,254,804.16/134,871.80 - Step 6: Final answer
x = 127,278.31
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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.