Finding the Fourth Proportional to 148,629.31, 205,278.80 and 97,868.95
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Solution
The fourth proportional to 148,629.31, 205,278.80 and 97,868.95 is: 135,171.32
Step by Step Solution
- Step 1: Write the proportion equation
148,629.31 : 205,278.80 = 97,868.95 : x - Step 2: Convert to fraction form
148,629.31/205,278.80 = 97,868.95/x - Step 3: Cross multiply
148,629.31x = 205,278.80 × 97,868.95 - Step 4: Simplify right side
148,629.31x = 20,090,419,610.72 - Step 5: Solve for x
x = 20,090,419,610.72/148,629.31 - Step 6: Final answer
x = 135,171.32
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1.5x scale
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.