Finding the Fourth Proportional to 153,666.44, 230,064.99 and 81,454.81
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Solution
The fourth proportional to 153,666.44, 230,064.99 and 81,454.81 is: 121,951.81
Step by Step Solution
- Step 1: Write the proportion equation
153,666.44 : 230,064.99 = 81,454.81 : x - Step 2: Convert to fraction form
153,666.44/230,064.99 = 81,454.81/x - Step 3: Cross multiply
153,666.44x = 230,064.99 × 81,454.81 - Step 4: Simplify right side
153,666.44x = 18,739,900,048.10 - Step 5: Solve for x
x = 18,739,900,048.10/153,666.44 - Step 6: Final answer
x = 121,951.81
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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.