Finding the Fourth Proportional to 149,259.31, 223,904.66 and 86,077.99
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Solution
The fourth proportional to 149,259.31, 223,904.66 and 86,077.99 is: 129,126.04
Step by Step Solution
- Step 1: Write the proportion equation
149,259.31 : 223,904.66 = 86,077.99 : x - Step 2: Convert to fraction form
149,259.31/223,904.66 = 86,077.99/x - Step 3: Cross multiply
149,259.31x = 223,904.66 × 86,077.99 - Step 4: Simplify right side
149,259.31x = 19,273,262,933.92 - Step 5: Solve for x
x = 19,273,262,933.92/149,259.31 - Step 6: Final answer
x = 129,126.04
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1.5x scale
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.