Finding the Fourth Proportional to 124,995.87, 172,497.74 and 71,289.63
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Solution
The fourth proportional to 124,995.87, 172,497.74 and 71,289.63 is: 98,381.65
Step by Step Solution
- Step 1: Write the proportion equation
124,995.87 : 172,497.74 = 71,289.63 : x - Step 2: Convert to fraction form
124,995.87/172,497.74 = 71,289.63/x - Step 3: Cross multiply
124,995.87x = 172,497.74 × 71,289.63 - Step 4: Simplify right side
124,995.87x = 12,297,299,703.99 - Step 5: Solve for x
x = 12,297,299,703.99/124,995.87 - Step 6: Final answer
x = 98,381.65
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1.5x scale
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.