Finding the Fourth Proportional to 144,929.13, 199,934.15 and 102,511.05
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Solution
The fourth proportional to 144,929.13, 199,934.15 and 102,511.05 is: 141,417.12
Step by Step Solution
- Step 1: Write the proportion equation
144,929.13 : 199,934.15 = 102,511.05 : x - Step 2: Convert to fraction form
144,929.13/199,934.15 = 102,511.05/x - Step 3: Cross multiply
144,929.13x = 199,934.15 × 102,511.05 - Step 4: Simplify right side
144,929.13x = 20,495,459,647.36 - Step 5: Solve for x
x = 20,495,459,647.36/144,929.13 - Step 6: Final answer
x = 141,417.12
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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.