Finding the Fourth Proportional to 134,465.60, 201,698.40 and 84,699.20
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Solution
The fourth proportional to 134,465.60, 201,698.40 and 84,699.20 is: 127,048.80
Step by Step Solution
- Step 1: Write the proportion equation
134,465.60 : 201,698.40 = 84,699.20 : x - Step 2: Convert to fraction form
134,465.60/201,698.40 = 84,699.20/x - Step 3: Cross multiply
134,465.60x = 201,698.40 × 84,699.20 - Step 4: Simplify right side
134,465.60x = 17,083,693,121.28 - Step 5: Solve for x
x = 17,083,693,121.28/134,465.60 - Step 6: Final answer
x = 127,048.80
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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.