Finding the Fourth Proportional to 147,488.46, 203,485.92 and 87,038.70
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Solution
The fourth proportional to 147,488.46, 203,485.92 and 87,038.70 is: 120,084.99
Step by Step Solution
- Step 1: Write the proportion equation
147,488.46 : 203,485.92 = 87,038.70 : x - Step 2: Convert to fraction form
147,488.46/203,485.92 = 87,038.70/x - Step 3: Cross multiply
147,488.46x = 203,485.92 × 87,038.70 - Step 4: Simplify right side
147,488.46x = 17,711,149,945.10 - Step 5: Solve for x
x = 17,711,149,945.10/147,488.46 - Step 6: Final answer
x = 120,084.99
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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.