Finding the Fourth Proportional to 147,758.99, 221,283.36 and 84,387.20
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Solution
The fourth proportional to 147,758.99, 221,283.36 and 84,387.20 is: 126,377.98
Step by Step Solution
- Step 1: Write the proportion equation
147,758.99 : 221,283.36 = 84,387.20 : x - Step 2: Convert to fraction form
147,758.99/221,283.36 = 84,387.20/x - Step 3: Cross multiply
147,758.99x = 221,283.36 × 84,387.20 - Step 4: Simplify right side
147,758.99x = 18,673,482,050.58 - Step 5: Solve for x
x = 18,673,482,050.58/147,758.99 - Step 6: Final answer
x = 126,377.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.