Finding the Fourth Proportional to 159,022.02, 219,454.58 and 87,403.95
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Solution
The fourth proportional to 159,022.02, 219,454.58 and 87,403.95 is: 120,619.75
Step by Step Solution
- Step 1: Write the proportion equation
159,022.02 : 219,454.58 = 87,403.95 : x - Step 2: Convert to fraction form
159,022.02/219,454.58 = 87,403.95/x - Step 3: Cross multiply
159,022.02x = 219,454.58 × 87,403.95 - Step 4: Simplify right side
159,022.02x = 19,181,196,700.57 - Step 5: Solve for x
x = 19,181,196,700.57/159,022.02 - Step 6: Final answer
x = 120,619.75
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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.