Finding the Fourth Proportional to 141,309.08, 195,005.94 and 77,646.68
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Solution
The fourth proportional to 141,309.08, 195,005.94 and 77,646.68 is: 107,152.09
Step by Step Solution
- Step 1: Write the proportion equation
141,309.08 : 195,005.94 = 77,646.68 : x - Step 2: Convert to fraction form
141,309.08/195,005.94 = 77,646.68/x - Step 3: Cross multiply
141,309.08x = 195,005.94 × 77,646.68 - Step 4: Simplify right side
141,309.08x = 15,141,563,821.28 - Step 5: Solve for x
x = 15,141,563,821.28/141,309.08 - Step 6: Final answer
x = 107,152.09
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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.