Finding the Fourth Proportional to 144,877.24, 199,931.09 and 81,210.94
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Solution
The fourth proportional to 144,877.24, 199,931.09 and 81,210.94 is: 112,071.37
Step by Step Solution
- Step 1: Write the proportion equation
144,877.24 : 199,931.09 = 81,210.94 : x - Step 2: Convert to fraction form
144,877.24/199,931.09 = 81,210.94/x - Step 3: Cross multiply
144,877.24x = 199,931.09 × 81,210.94 - Step 4: Simplify right side
144,877.24x = 16,236,590,848.24 - Step 5: Solve for x
x = 16,236,590,848.24/144,877.24 - Step 6: Final answer
x = 112,071.37
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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.