Finding the Fourth Proportional to 159,281.83, 219,783.74 and 91,285.70
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Solution
The fourth proportional to 159,281.83, 219,783.74 and 91,285.70 is: 125,959.83
Step by Step Solution
- Step 1: Write the proportion equation
159,281.83 : 219,783.74 = 91,285.70 : x - Step 2: Convert to fraction form
159,281.83/219,783.74 = 91,285.70/x - Step 3: Cross multiply
159,281.83x = 219,783.74 × 91,285.70 - Step 4: Simplify right side
159,281.83x = 20,063,112,647.55 - Step 5: Solve for x
x = 20,063,112,647.55/159,281.83 - Step 6: Final answer
x = 125,959.83
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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.