Finding the Fourth Proportional to 153,463.29, 211,812.02 and 103,133.13
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Solution
The fourth proportional to 153,463.29, 211,812.02 and 103,133.13 is: 142,345.68
Step by Step Solution
- Step 1: Write the proportion equation
153,463.29 : 211,812.02 = 103,133.13 : x - Step 2: Convert to fraction form
153,463.29/211,812.02 = 103,133.13/x - Step 3: Cross multiply
153,463.29x = 211,812.02 × 103,133.13 - Step 4: Simplify right side
153,463.29x = 21,844,836,594.22 - Step 5: Solve for x
x = 21,844,836,594.22/153,463.29 - Step 6: Final answer
x = 142,345.68
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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.