Finding the Fourth Proportional to 188,540.84, 260,182.86 and 103,656.08
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Solution
The fourth proportional to 188,540.84, 260,182.86 and 103,656.08 is: 143,043.47
Step by Step Solution
- Step 1: Write the proportion equation
188,540.84 : 260,182.86 = 103,656.08 : x - Step 2: Convert to fraction form
188,540.84/260,182.86 = 103,656.08/x - Step 3: Cross multiply
188,540.84x = 260,182.86 × 103,656.08 - Step 4: Simplify right side
188,540.84x = 26,969,535,350.79 - Step 5: Solve for x
x = 26,969,535,350.79/188,540.84 - Step 6: Final answer
x = 143,043.47
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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.