Finding the Fourth Proportional to 112,014.18, 154,579.09 and 61,026.75
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Solution
The fourth proportional to 112,014.18, 154,579.09 and 61,026.75 is: 84,216.65
Step by Step Solution
- Step 1: Write the proportion equation
112,014.18 : 154,579.09 = 61,026.75 : x - Step 2: Convert to fraction form
112,014.18/154,579.09 = 61,026.75/x - Step 3: Cross multiply
112,014.18x = 154,579.09 × 61,026.75 - Step 4: Simplify right side
112,014.18x = 9,433,459,480.66 - Step 5: Solve for x
x = 9,433,459,480.66/112,014.18 - Step 6: Final answer
x = 84,216.65
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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.