Finding the Fourth Proportional to 111,083.15, 153,298.82 and 63,335.99
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Solution
The fourth proportional to 111,083.15, 153,298.82 and 63,335.99 is: 87,405.99
Step by Step Solution
- Step 1: Write the proportion equation
111,083.15 : 153,298.82 = 63,335.99 : x - Step 2: Convert to fraction form
111,083.15/153,298.82 = 63,335.99/x - Step 3: Cross multiply
111,083.15x = 153,298.82 × 63,335.99 - Step 4: Simplify right side
111,083.15x = 9,709,332,530.53 - Step 5: Solve for x
x = 9,709,332,530.53/111,083.15 - Step 6: Final answer
x = 87,405.99
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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.