Finding the Fourth Proportional to 144,488.76, 199,394.66 and 79,960.67
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Solution
The fourth proportional to 144,488.76, 199,394.66 and 79,960.67 is: 110,345.82
Step by Step Solution
- Step 1: Write the proportion equation
144,488.76 : 199,394.66 = 79,960.67 : x - Step 2: Convert to fraction form
144,488.76/199,394.66 = 79,960.67/x - Step 3: Cross multiply
144,488.76x = 199,394.66 × 79,960.67 - Step 4: Simplify right side
144,488.76x = 15,943,730,558.68 - Step 5: Solve for x
x = 15,943,730,558.68/144,488.76 - Step 6: Final answer
x = 110,345.82
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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.