Finding the Fourth Proportional to 112,000.19, 154,560.19 and 61,699.19
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Solution
The fourth proportional to 112,000.19, 154,560.19 and 61,699.19 is: 85,144.84
Step by Step Solution
- Step 1: Write the proportion equation
112,000.19 : 154,560.19 = 61,699.19 : x - Step 2: Convert to fraction form
112,000.19/154,560.19 = 61,699.19/x - Step 3: Cross multiply
112,000.19x = 154,560.19 × 61,699.19 - Step 4: Simplify right side
112,000.19x = 9,536,238,529.25 - Step 5: Solve for x
x = 9,536,238,529.25/112,000.19 - Step 6: Final answer
x = 85,144.84
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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.