Finding the Fourth Proportional to 143,214.93, 197,632.67 and 79,551.09
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Solution
The fourth proportional to 143,214.93, 197,632.67 and 79,551.09 is: 109,778.32
Step by Step Solution
- Step 1: Write the proportion equation
143,214.93 : 197,632.67 = 79,551.09 : x - Step 2: Convert to fraction form
143,214.93/197,632.67 = 79,551.09/x - Step 3: Cross multiply
143,214.93x = 197,632.67 × 79,551.09 - Step 4: Simplify right side
143,214.93x = 15,721,893,920.35 - Step 5: Solve for x
x = 15,721,893,920.35/143,214.93 - Step 6: Final answer
x = 109,778.32
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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.