Finding the Fourth Proportional to 153,201.92, 211,418.12 and 86,133.92
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Solution
The fourth proportional to 153,201.92, 211,418.12 and 86,133.92 is: 118,864.51
Step by Step Solution
- Step 1: Write the proportion equation
153,201.92 : 211,418.12 = 86,133.92 : x - Step 2: Convert to fraction form
153,201.92/211,418.12 = 86,133.92/x - Step 3: Cross multiply
153,201.92x = 211,418.12 × 86,133.92 - Step 4: Simplify right side
153,201.92x = 18,210,271,434.63 - Step 5: Solve for x
x = 18,210,271,434.63/153,201.92 - Step 6: Final answer
x = 118,864.51
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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.