Finding the Fourth Proportional to 156,815.82, 216,358.16 and 88,821.99
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Solution
The fourth proportional to 156,815.82, 216,358.16 and 88,821.99 is: 122,547.34
Step by Step Solution
- Step 1: Write the proportion equation
156,815.82 : 216,358.16 = 88,821.99 : x - Step 2: Convert to fraction form
156,815.82/216,358.16 = 88,821.99/x - Step 3: Cross multiply
156,815.82x = 216,358.16 × 88,821.99 - Step 4: Simplify right side
156,815.82x = 19,217,361,879.83 - Step 5: Solve for x
x = 19,217,361,879.83/156,815.82 - Step 6: Final answer
x = 122,547.34
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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.