Finding the Fourth Proportional to 159,547.05, 220,173.84 and 87,927.12
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Solution
The fourth proportional to 159,547.05, 220,173.84 and 87,927.12 is: 121,338.83
Step by Step Solution
- Step 1: Write the proportion equation
159,547.05 : 220,173.84 = 87,927.12 : x - Step 2: Convert to fraction form
159,547.05/220,173.84 = 87,927.12/x - Step 3: Cross multiply
159,547.05x = 220,173.84 × 87,927.12 - Step 4: Simplify right side
159,547.05x = 19,359,251,650.54 - Step 5: Solve for x
x = 19,359,251,650.54/159,547.05 - Step 6: Final answer
x = 121,338.83
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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.