Finding the Fourth Proportional to 144,342.10, 199,187.98 and 79,810.23
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Solution
The fourth proportional to 144,342.10, 199,187.98 and 79,810.23 is: 110,135.84
Step by Step Solution
- Step 1: Write the proportion equation
144,342.10 : 199,187.98 = 79,810.23 : x - Step 2: Convert to fraction form
144,342.10/199,187.98 = 79,810.23/x - Step 3: Cross multiply
144,342.10x = 199,187.98 × 79,810.23 - Step 4: Simplify right side
144,342.10x = 15,897,238,746.44 - Step 5: Solve for x
x = 15,897,238,746.44/144,342.10 - Step 6: Final answer
x = 110,135.84
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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.