Finding the Fourth Proportional to 122,570.21, 169,154.12 and 92,302.13
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Solution
The fourth proportional to 122,570.21, 169,154.12 and 92,302.13 is: 127,382.38
Step by Step Solution
- Step 1: Write the proportion equation
122,570.21 : 169,154.12 = 92,302.13 : x - Step 2: Convert to fraction form
122,570.21/169,154.12 = 92,302.13/x - Step 3: Cross multiply
122,570.21x = 169,154.12 × 92,302.13 - Step 4: Simplify right side
122,570.21x = 15,613,285,574.28 - Step 5: Solve for x
x = 15,613,285,574.28/122,570.21 - Step 6: Final answer
x = 127,382.38
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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.